Application Guide

Scroll compressors
DSF090 to DSF530

Single and manifold, 50-60 Hz - R32

www.danfoss.com
Scroll compressors, DSF090 to DSF530 | Contents

Contents

Safety and warnings 5

Introduction 6
Product description 6
Cut Away DSF090-200 6
Cut away DSF 270-530 7
How do IDVs work? 7

Product identification 8
Name Plate 8
Nomenclature 8
Compressors serial number 9

Certificates, declarations, and approvals 10

Low voltage directive 2014/35/EU 10
Machines directive 2006/42/EC 10
Pressure equipment directive 2014/68/EU 10
Internal free volume 10

Refrigerants 11
General information 11
R32 11

Technical specification 12
50-60 Hz data, Single compressor 12

Performance data 13
R32 50-60 Hz, Single compressor 13
Tandem and trio performances 13

Sound and vibration data 14

Compressor sound radiation 14
Mechanical vibrations 15

Operating envelope data 16

Operating envelope 16

Dimensions 18
Single compressors 18
Tandem assemblies 19

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Scroll compressors, DSF090 to DSF530 | Contents

Trio assemblies 20

Mechanical connections 22
Connection details 22
Design compressor mounting 22
Design piping 26

Electrical connections 33
Wiring connections 33
Electrical specifications 35

Application 41
Manage oil in the circuit 41
Manage sound and vibration 41
Manage operating envelope 42
Manage superheat 44
Manage off cycle migration 46
Power supply and electrical protection 49
Control logic 52
Reduce moisture in the system 53
Assembly line procedure 54
Commissioning 57
Dismantle and disposal 58

Packaging 59
Single pack 59
Industrial pack 59

Ordering 60
Compressor code numbers 60
Single pack 60
Industrial pack 60

Accessories and spare parts 62

Gaskets 62
Solder sleeve 62
Rotolock nut 62
Motor protection modules 62
Crankcase heaters 63
Mounting hardware 63
Lubricant 63

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Scroll compressors, DSF090 to DSF530 | Contents

Terminal boxes, covers and T-block connectors 64

Acoustic hoods 64
Miscellaneous 64
Tandem kits 65
Trio kits 65

Online support 66

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Scroll compressors, DSF090 to DSF530 | Safety and warnings

Safety and warnings

Danfoss compressors are designed and manufactured according to the state of the art and to valid European and US
regulations. Particular emphasis has been placed on safety and reliability. Related instructions are highlighted with
the following icons:

This icon indicates instructions to avoid safety risk.

This icon indicates instructions to avoid reliability risk.

The purpose of this guideline is to help customers qualify compressors in the unit. You are strongly advise to follow
these instructions. For any deviation from the guidelines, please contact Danfoss Technical Support. In any case,
Danfoss accepts no liability as a result of the improper integration of the compressor into the unit by the system
manufacturer.

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Scroll compressors, DSF090 to DSF530 | Introduction

Introduction

Product description
DSF series scroll compressor benefit from an improved design to achieve the highest efficiency and increased life
time.

Cut Away DSF090-200

Figure 1: Cut Away DSF090-200

1 1 Intermediate discharge valves (IDVs) increase

2 seasonal efficiency
3 2 Heat shield lowers the heat transfer between
discharge and suction gas and the sound level
3 Internal Non Return Valve (INRV) prevents
excessive leak rate from high pressure side
4
4 Lead free polymer bearings improve behavior
under poor lubrication conditions
5 Patented motor cap for optimal motor cooling and
5
higher resistance to liquid slugging
6 Organ pipe masters oil circulation in manifold
configuration.

6
CC-000005

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Scroll compressors, DSF090 to DSF530 | Introduction

Cut away DSF 270-530

Figure 2: Cut Away DSF 270-530
1 Intermediate discharge valves (IDVs) increase
1
seasonal efficiency
2
2 Heat shield lowers the heat transfer between
3
discharge and suction gas and the sound level
4
3 Integrated discharge gas temperature protection
(DGT)
5
4 Internal Non Return Valve (INRV) prevents
6 excessive leak rate from high pressure side
5 Lead free polymer bearings improve behavior
under poor lubrication conditions
7 6 Patented motor cap for optimal motor cooling
7 Patented gas path flow with gas intake design
induce higher resistance to liquid slugging
8 Organ pipe masters oil circulation in manifold
8
configuration.

How do IDVs work?

Figure 3: Intermediate Discharge Valve (IDV)

Danfoss Intermediate Discharge Valves (IDVs) are located close to the discharge side of the compressor. They reduce
excessive compression of refrigerant under part-load conditions while maintaining the same cooling capacity. The
IDVs open when discharge pressure falls below the built-in optimization point. They adapt the effort of the motor to
the varying load and pressure conditions in the system, thus reducing the effort of the motor and its electrical
consumption and improving the system’s seasonal energy efficiency.

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Scroll compressors, DSF090 to DSF530 | Product identification

Product identification

Name Plate
Figure 4: Name Plate
1 Model number

1 Model no : DSF485A4ABA MADE IN FRANCE

2 Serial number
M
2 Serial no : ZQ1109974321
380-415V 3~ 50Hz 3 Approvals
460V 3~ 60 Hz 5
LR 343 A MAX OPER.92 A
Thermally protected system
P.E.D.
4 Refrigerant
LP side HP side
Marking
PS 31,2 bar 48,7 bar 5 Supply voltage, Starting current & Maximum
TS max 51,0 °C 150,0 °C 6
TS min -35,0 °C -35,0 °C
Volume 27,5 L 3,9 L operating current
3 Lubricant: 185 SL 7
0094
6 Housing service pressure
1234799011

4 Refrige rant: R32

2021

PROTECTED BY DOMESTIC AND FOREIGN PATENTS 7 Factory charged lubricant

Nomenclature
Danfoss scroll compressor DSF for R32 is available as single compressor and can be assembled in tandem or trio
combinations. The example below presents the compressor nomenclature which equals the technical reference as
shown on the compressor nameplate. Code numbers for ordering are listed in section Ordering.

Family, Nominal Approvals Voltage Version Evolution

lubricant capacity index
& refrigerant

DSF 530 A 4 AB A
Family, lubricant
& refrigerant Evolution index
DSF: Scroll, POE lubricant, A~Z
R32
Motor protection
Nominal capacity A: Electronic module, 24 V AC,
in thousand Btu/h at 60 Hz B: Electronic module, 110 – 240 V,
ARI conditions L : Internal overload protector

Motor index

Motor voltage code

3: 208-230V/3~/60Hz
4: DSF090-200: 400/3~/50Hz - 460V/3~/60Hz Suction and discharge connections
DSF270-530: 380-415/3~/50Hz - 460V/3~/60Hz A: Brazed connections
7: 575V/3~/60Hz
9: 380-400V/3~/60Hz

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Scroll compressors, DSF090 to DSF530 | Product identification

Compressors serial number

A B 25 12345678
Year code 8 Digit serial number

Month code

Plant assembly line code

Table 1: Serial number code legend table

Year code Month code Plant assembly line code
Year Code Month Code Plant Code
1990, 2010 A January A Trévoux, France 11
1991, 2011 B February B
1992, 2012 C March C
1993, 2013 D April D Wuqing ,China 25
1994, 2014 E May E
1995, 2015 F June F
1996, 2016 G July G
1997, 2017 H August H
1998, 2018 J September J
1999, 2019 K October K
2000, 2020 L November L
2001, 2021 M December M
2002, 2022 N
2003, 2023 P
2004, 2024 Q
2005, 2025 R
2006, 2026 S
2007, 2027 T
2008, 2028 U
2009, 2029 V

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Scroll compressors, DSF090 to DSF530 | Certificates, declarations, and approvals

Certificates, declarations, and approvals

DSF scroll compressors comply with the following approvals and certificates.
Certificates are listed on: Documentation for Commercial Compressor | Danfoss

Table 2: Approval and certificates

Approval and certificates Certification logo Models

CE0062 or CE0094 (European Directive) All DSF models

UL (Underwriters Laboratories) All DSF models

Other approvals / certificates Contact Danfoss

Low voltage directive 2014/35/EU

Table 3: Low voltage directive 2014/35/EU
Products DSF models
Declaration of conformity Contact Danfoss

Machines directive 2006/42/EC

Table 4: Machines directive 2006/42/EC
Products DSF models
Manufacturer’s declaration of incorporation Contact Danfoss

Pressure equipment directive 2014/68/EU

Table 5: Pressure equipment directive 2014/68/EU
Products DSF090-200 DSF270-325 DSF485-530
Refrigerant fluids Group 1 Group 1 Group 1
Category PED III III IV
-35°C < Ts < 53°C -35°C < Ts < 51°C
Maximum / Minimum temperature (Low side) - Ts
-31°F < Ts < 127°F -31°F < Ts < 125.6°F
Maximum allowable pressure (Low side) - Ps 32.7bar(g) / 474psig 31.2 bar(g) / 452 psig
Maximum allowable pressure (High side) - Ps 48.7 bar(g) / 706 psig
Declaration of conformity Contact Danfoss

Internal free volume

Table 6: Internal free volume
Internal free volume without oil
Products Low pressure side High pressure side Total
litre cu.inch litre cu.inch litre cu.inch
DSF090-100 11.7 714 0.7 43 12.4 757
DSF115-175 13.6 830 0.7 43 14.3 873
DSF200 13.9 848 0.7 43 14.6 891
DSF270 27.5 1678 2.9 177 30.4 1855
DSF325 27.1 1654 2.8 171 29.9 1825
DSF485 28.5 1739 3.9 238 32.4 1977
DSF530 28.5 1739 3.9 238 32.4 1977

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Scroll compressors, DSF090 to DSF530 | Refrigerants

Refrigerants

General information
When choosing a refrigerant, different aspects must be taken into consideration:
• Legislation (now and in the future)
• Safety
• Application envelope in relation to expected running conditions
• Compressor capacity and efficiency
• Compressor manufacturer recommendations & guidelines

Additional points could influence the final choice:

• Environmental considerations
• Standardisation of refrigerants and lubricants
• Refrigerant cost
• Refrigerant availability

R32
R32 is a pure HFC refrigerant with a zero Ozone Depletion Potential (ODP=0) and a low Global Warming Potential
(GWP: 677/AR5; 675/AR4).

R32 leads to higher discharge temperatures than R410A but it offers higher cooling capacities and better efficiencies
compared to R410A.

R32 is classified A2L with low flammability properties. Please refer to European regulations and directives about the
use of refrigerant of the A2L safety group (EN378, EN60335). Outside Europe refer to the local regulation

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Scroll compressors, DSF090 to DSF530 | Technical specification

Technical specification

50-60 Hz data, Single compressor

Table 7: 50-60 Hz data, Single compressor
Swept volume Displacement (50 Hz) (1) Displacement (60 Hz) (2) Oil charge Net weight (3)
Model
cm3/rev cu.in/rev m3/h cu.ft/h m3/h cu.ft/h dm3 oz kg lbs
DSF090 81.3 4.96 14.2 500 17.1 603 3.0 102 58 128
DSF100 88.4 5.39 15.4 544 18.6 657 3.0 102 58 128
DSF115 103.5 6.32 18 636 21.8 770 3.3 113 64 141
DSF130 116.9 7.13 20.3 717 24.6 869 3.3 113 64 141
DSF155 133 8.12 23.1 816 27.9 985 3.3 113 67 148
DSF175 151.7 9.26 26.4 932 31.9 1127 3.3 113 69 152
DSF200 170.3 10.39 29.6 1045 35.8 1264 3.6 123 71.5 158
DSF270 227.6 13.89 39.6 1398 47.8 1688 6.1 206 114 251
DSF325 276.2 16.85 48.1 1699 58.0 2048 6.1 206 117 258
DSF485 407.2 24.85 70.9 2502 85.1 3005 6.1 206 176 388
DSF530 442.6 27.01 77 2719 92.9 3281 6.1 206 176 388

(1)
Displacement at nominal speed: 2900 rpm at 50 Hz
(2)
Displacement at nominal speed : 3500 rpm at 60 Hz
(3)
Net weight with oil charge

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Scroll compressors, DSF090 to DSF530 | Performance data

Performance data

R32 50-60 Hz, Single compressor

Table 8: 50-60 Hz R32, Single compressor
Nominal tons
Nominal cooling capacity Power input COP E.E.R.
Model 60Hz
TR W Btu/h kW W/W Btu/h/W
DSF090 7.5 19958 68096 6.69 2.99 10.19
DSF100 8.5 21940 74860 7.13 3.08 10.50
DSF115 10 26349 89904 8.31 3.17 10.82
DSF130 11 29421 100384 9.19 3.20 10.93
DSF155 13 33772 115232 10.51 3.21 10.97
50 Hz DSF175 15 39172 133655 12.07 3.24 11.07
DSF200 16.5 43329 147838 13.53 3.20 10.92
DSF270 22.5 59030 201416 17.98 3.28 11.20
DSF325 27 71480 243897 21.50 3.33 11.35
DSF485 40 107102 365443 31.67 3.38 11.54
DSF530 44 116998 399209 34.27 3.41 11.65
DSF090 7.5 26938 91911 8.68 3.10 10.59
DSF100 8.5 29362 100182 9.38 3.13 10.67
DSF115 10 34923 119157 10.79 3.24 11.04
DSF130 11 39465 134653 12.24 3.22 11.00
DSF155 13 45215 154273 13.82 3.27 11.16
60 Hz DSF175 15 51618 176121 15.70 3.29 11.22
DSF200 16.5 57717 196932 17.63 3.27 11.17
DSF270 22.5 78270 267065 23.69 3.30 11.27
DSF325 27 95210 324866 28.54 3.34 11.38
DSF485 40 144600 493390 42.12 3.43 11.71
DSF530 44 156300 533311 45.6 3.43 11.70

 NOTE:
TR: Ton of Refrigeration,
COP: Coefficient Of Performance
EER: Energy Efficiency Ratio
Standard rating conditions for 50Hz: Evaporating temperature: 5°C (41°F), Condensing temperature: 50°C (122°F),
Superheat: 10K (18°F), Subcooling: 0K (0°F)

Standard rating conditions for 60Hz: Evaporating temperature: 7.2°C (45°F), Condensing temperature: 54.4°C (130°F),
Superheat: 11.1K (20°F), Subcooling: 8.3K (15°F)

Subject to modification without prior notification.

Data given for motor code 4 compressor with above conditions

For regular updates and detailed capacities, please refer to Coolselector®2.

Tandem and trio performances

The impact of manifolding on compressor performances depends widely of the customer system itself. Therefore, it
would be unrealistic to provide data that corresponds accurately to a particular system. In first approach, to support
compressors selection at full load, the manifold performances can be considered as the sum of capacities of the
compressors composing the manifold. For better accuracy, the customer should integrate the appropriate weighing
coefficients according to his system very pressure drops and part load levels.

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Scroll compressors, DSF090 to DSF530 | Sound and vibration data

Sound and vibration data

Typical sounds and vibrations in systems can be broken down into the following three categories:
• Sound radiation (through air)
• Mechanical vibrations (through parts and structure)
• Gas pulsation (through refrigerant)

The following sections focus on the causes and methods of mitigation for each of the above sources.

Compressor sound radiation

For sound radiating from the compressors, the emission path is air and the sound waves are travelling directly from
the machine in all directions.

Sound levels for compressors running alone as follows:

Table 9: Compressor sound radiation
50 Hz 60 Hz
Compressor model Acoustic hood code no.
Sound power, dB(A) Attenuation, dB(A) Sound power, dB(A) Sound power, dB(A)
Body 120Z0490
DSF090 74 4 77 4
Top 120Z0493
Body 120Z0490
DSF100 76 4 79 4
Top 120Z0493
Body 120Z0491
DSF115-175 78 4 81 5
Top 120Z0493
Body 120Z0492
DSF200 80 5 83 6
Top 120Z0493
DSF270 83 4 86 4
DSF325 83 4 86 4
120Z0768
DSF485 89 4 92 4
DSF530 89 4 92 4

 NOTE:
Sound power and attenuation are given at ARI conditions, measured in free space.

For compressors running simultaneously

The global sound level of “n” identical compressors is:

LGLOBAL = Li + 10 Log10 n

Example for the trio

DSF810T = 3 × DSF270

LDSF270 = 83dB(A)

LDSF810T = 83 + 10 Log10 3 = 87 . 8dB(A)

The global sound level of “n” different compressors with respectively Li sound level is:
i = n
LGLOBAL = 10 log10 (∑ 100.1 ′ Li)
i = 1

Example for the tandem

DSF1180T = DSF325+DSF325+DSF530

LDSF325 = 83dB(A), LDSF530 = 89dB(A)

LDSF1180T =10 Log10(100 . 1×83 + 100 . 1×83 + 100 . 1×89) = 90 . 8 dB(A)

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Scroll compressors, DSF090 to DSF530 | Sound and vibration data

Mechanical vibrations
A compressor generates some vibrations that propagate into the surrounding parts and structure. The vibration
level of a DSF compressor alone does not exceed 120 µm peak to peak for DSF090 to DSF200, and 154um peak to
peak for DSF270 to DSF530.. However, when system structure natural frequencies are close to running frequency,
vibrations are amplified due to resonance phenomenon.

A high vibration level is damageable for piping reliability and generates high sound levels.

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Scroll compressors, DSF090 to DSF530 | Operating envelope data

Operating envelope data

The Operating envelope data for DSF scroll compressors guarantees reliable operations of the compressor for
steady-state operation.

Steady-state operation envelope is valid for a suction superheat within 5K to 10K range at nominal Voltage.

Operating envelope
Figure 5: Operating envelope R32 DSF090 to DSF130
Evaporating temperature (°F)
-31 -22 -13 -4 5 14 23 32 41 50 59 68 77 86
70 158
65 149
60 140
55 131
Condensing temperature (°C)

Condensing temperature (°F)

50 122
S.H. = 5 K (9°F)
45 S.H. = 10 K (18°F) 113
40 104
35 95
30 86
25 77
20 68
15 59
10 50
5 41
0 32
-35 -30 -25 -20 -15 -10 -5 0 5 10 15 20 25 30
Evaporating temperature (°C) CC-000182

Figure 6: Operating envelope R32 DSF155 to DSF200

Evaporating temperature (°F)
-31 -22 -13 -4 5 14 23 32 41 50 59 68 77 86
70 158
65 149
60 140
55 131
Condensing temperature (°C)

Condensing temperature (°F)

50 S.H. = 10 K (18°F) 122

S.H. = 5 K (9°F)
45 113
40 104
35 95
30 86
25 77
20 68
15 59
10 50
5 41
0 32
-35 -30 -25 -20 -15 -10 -5 0 5 10 15 20 25 30
Evaporating temperature (°C) CC-000183

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Scroll compressors, DSF090 to DSF530 | Operating envelope data

Figure 7: Operating envelope R32 DSF270 to DSF530

Evaporating temperature (°F)
-31 -22 -13 -4 5 14 23 32 41 50 59 68 77 86
70 158
65 149
60 140
55 131
Condensing temperature (°C)

Condensing temperature (°F)

50 S.H. = 10 K (18°F) 122
S.H. = 5 K (9°F)
45 113
40 104
35 95
30 86
25 77
20 68
15 59
10 50
5 41
0 32
-35 -30 -25 -20 -15 -10 -5 0 5 10 15 20 25 30
Evaporating temperature (°C) CC-000543

Pressure settings
Table 10: Pressure settings
Pressure settings R32
bar(g) 10 – 43
Working range high side
psig 145 – 624
bar(g) 1.7 – 15.9
Working range low side
psig 25 – 231
bar(g) 44.4
Maximum high pressure safety switch setting
psig 645
bar(g) 1.5
Minimum low pressure safety switch setting
psig 22
bar(g) 1.5 bar below nominal evap. pressure with minimum of 1.7 bar(g)
Minimum low pressure pump-down switch setting
psig 22 psi below nominal evap. pressure with minimum of 25 psig

High and low pressure protection

Low-pressure (LP) and high-pressure (HP) safety switches must never be bypassed nor delayed and must stop all
the compressors.

LP switch auto restart must be limited to 5 times within 12 hours.

HP safety switch must be reset manually.

Depending on application operating envelope, you must define HP and LP limits within operating envelope and
pressure setting table above.

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Scroll compressors, DSF090 to DSF530 | Dimensions

Dimensions

Single compressors
Figure 8: Outline drawing number 1 Figure 9: Outline drawing number 2 Figure 10: Outline drawing number 3

CC-000055

8556208

8556199
ØD ØD

ØD

H
H H
H2
H2 H2

H1
H1 H1

L3
190.5mm
Ø19.05mm (7.5 inch)
(0.75 inch) 30° L2 L2
190.5mm
(7.5 inch)

L1
L2 L3 L3
L1 L1

30°

Table 11: Single compressor

Moter voltage D H H1 H2 L1 L2 L3
Compressor model Outline drawing no.
code mm inch mm inch mm inch mm inch mm inch mm inch mm inch
DSF090-100 3, 4, 7, 9 243 9.57 485 19.09 235 9.25 451 17.76 180 7.09 230 9.06 230 9.06 8560176
DSF115-175 3(1), 4, 7, 9 243 9.57 542 21.34 278 10.94 509 20.04 180 7.09 230 9.06 230 9.06 8560177
DSF115-175 3 243 9.57 542 21.34 278 10.94 509 20.04 201 7.91 230 9.06 230 9.06 1 8560246
DSF200 3, 7, 9 243 9.57 558 21.97 299 11.77 524 20.63 201 7.91 230 9.06 230 9.06 8560235
DSF200 4 243 9.57 558 21.97 299 11.77 524 20.63 180 7.09 230 9.06 230 9.06 8560234
DSF270 3, 4, 7, 9 266 10.47 653 25.71 302 11.87 618 24.33 427 16.81 371 14.61 371 14.61
2 8556208
DSF325 3, 4, 7, 9 266 10.47 653 25.71 302 11.87 618 24.33 427 16.81 371 14.61 371 14.61
DSF485 3, 4, 7, 9 333 13.11 726 28.58 302 11.87 667 26.26 429 16.89 371 14.61 371 14.61
3 8556198
DSF530 3, 4, 7, 9 333 13.11 726 28.58 302 11.87 667 26.26 429 16.89 371 14.61 371 14.61

(1)
DSF115-130

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Scroll compressors, DSF090 to DSF530 | Dimensions

Tandem assemblies
Figure 11: Outline drawing number 1 Figure 12: Outline drawing number 2 Figure 13: Outline drawing number 3

L1
H1 L1 H L1
H
H H1 H1

L L
L

D D D

8556228

8556222
8556230

Figure 14: Outline drawing number 4 Figure 15: Outline drawing number 5

L1 L1 H1
H H1 H

L L

D D
CC-000056
8556223

Table 12: Tandem assemblies

Motor voltage L D H L1 H1 Outline drawing
Tandem model Composition Cp1 + Cp2
code mm inch mm inch mm inch mm inch mm inch number
DSF180E 3, 4, 7, 9 DSF090+DSF090 850 33.46 384 15.12 507 19.96 240 9.45 242 9.53 1 8560144
DSF200E 3, 4, 7, 9 DSF100+DSF100 850 33.46 384 15.12 507 19.96 240 9.45 242 9.53 1 8560144
DSF230E 3, 4, 7, 9 DSF115+DSF115 850 33.46 384 15.12 565 22.24 240 9.45 242 9.53 1 8560145
DSF260E 3, 4, 7, 9 DSF130+DSF130 850 33.46 384 15.12 565 22.24 240 9.45 242 9.53 1 8560145
DSF215U 3, 4, 7, 9 DSF100+DSF115 850 33.46 386 15.2 565 22.24 240 9.45 242 9.53 1 8560189
DSF230U 3, 4, 7, 9 DSF100+DSF130 850 33.46 386 15.2 565 22.24 240 9.45 242 9.53 1 8560189
DSF255U 4, 7, 9 DSF100+DSF155 850 33.46 386 15.2 565 22.24 240 9.45 242 9.53 1 8560189
DSF255U 3 DSF100+DSF155 850 33.46 428 16.85 565 22.24 240 9.45 242 9.53 1 8560189
DSF275U 4, 7, 9 DSF100+DSF175 850 33.46 386 15.2 565 22.24 240 9.45 242 9.53 1 8560189
DSF275U 3 DSF100+DSF175 850 33.46 428 16.85 565 22.24 240 9.45 242 9.53 1 8560189
DSF285U 4, 7, 9 DSF130+DSF155 850 33.46 386 15.2 565 22.24 240 9.45 242 9.53 1 8560168
DSF285U 3 DSF130+DSF155 850 33.46 428 16.85 565 22.24 240 9.45 242 9.53 1 8560168
DSF300U 3, 7, 9 DSF100+DSF200 850 33.46 428 16.85 580 22.83 240 9.45 242 9.53 1 8560190
DSF300U 4 DSF100+DSF200 850 33.46 386 15.2 580 22.83 240 9.45 242 9.53 1 8560190
DSF305U 4, 7, 9 DSF130+DSF175 850 33.46 386 15.2 565 22.24 240 9.45 242 9.53 1 8560168
DSF305U 3 DSF130+DSF175 850 33.46 428 16.85 565 22.24 240 9.45 242 9.53 1 8560168
DSF310E 4, 7, 9 DSF155+DSF155 850 33.46 384 15.12 565 22.24 240 9.45 242 9.53 1 8560145
DSF310E 3 DSF155+DSF155 850 33.46 428 16.85 565 22.24 240 9.45 242 9.53 1 8560145
DSF315U 3, 7, 9 DSF115+DSF200 850 33.46 428 16.85 580 22.83 240 9.45 242 9.53 1 8560167
DSF315U 4 DSF115+DSF200 850 33.46 386 15.2 580 22.83 240 9.45 242 9.53 1 8560167
DSF330U 4, 7, 9 DSF155+DSF175 850 33.46 386 15.2 565 22.24 240 9.45 242 9.53 1 8560168
DSF330U 3 DSF155+DSF175 850 33.46 428 16.85 565 22.24 240 9.45 242 9.53 1 8560168

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Scroll compressors, DSF090 to DSF530 | Dimensions

Motor voltage L D H L1 H1 Outline drawing

Tandem model Composition Cp1 + Cp2
code mm inch mm inch mm inch mm inch mm inch number
DSF331U 3, 7, 9 DSF130+DSF200 850 33.46 428 16.85 580 22.83 240 9.45 242 9.53 1 8560167
DSF331U 4 DSF130+DSF200 850 33.46 386 15.2 580 22.83 240 9.45 242 9.53 1 8560167
DSF350E 4, 7, 9 DSF175+DSF175 850 33.46 384 15.12 565 22.24 240 9.45 242 9.53 1 8560145
DSF350E 3 DSF175+DSF175 850 33.46 428 16.85 565 22.24 240 9.45 242 9.53 1 8560145
DSF355U 3, 7, 9 DSF155+DSF200 850 33.46 428 16.85 580 22.83 240 9.45 242 9.53 1 8560167
DSF355U 4 DSF155+DSF200 850 33.46 386 15.2 580 22.83 240 9.45 242 9.53 1 8560167
DSF375U 3, 7, 9 DSF175+DSF200 850 33.46 428 16.85 580 22.83 240 9.45 242 9.53 1 8560167
DSF375U 4 DSF175+DSF200 850 33.46 386 15.2 580 22.83 240 9.45 242 9.53 1 8560167
DSF400E 3, 7, 9 DSF200+DSF200 850 33.46 428 16.85 580 22.83 240 9.45 242 9.53 1 8560146
DSF400E 4 DSF200+DSF200 850 33.46 386 15.2 580 22.83 240 9.45 242 9.53 1 8560146
DSF400X 3, 4, 7, 9 DSF130+DSF270 903 35.55 533 20.98 731 28.78 359 14.13 211 8.31 5 8560169
DSF470X 3, 4, 7, 9 DSF200+DSF270 903 35.55 533 20.98 731 28.78 359 14.13 211 8.31 5 8560170
DSF500X 3, 4, 7, 9 DSF175+DSF325 903 35.55 533 20.98 731 28.78 359 14.13 211 8.31 5 8560169
DSF525X 3, 4, 7, 9 DSF200+DSF325 903 35.55 533 20.98 731 28.78 359 14.13 211 8.31 5 8560170
DSF540E 3, 4, 7, 9 DSF270+DSF270 1025 40.35 527 20.75 701 27.6 535 21.06 211 8.31 2 8556228
DSF595U 3, 4, 7, 9 DSF270+DSF325 1025 40.35 527 20.75 701 27.6 535 21.06 211 8.31 2 8556228
DSF650E 3, 4, 7, 9 DSF325+DSF325 1025 40.35 527 20.75 701 27.6 535 21.06 211 8.31 2 8556228
DSF800U 4, 7, 9 DSF270+DSF530 1025 40.35 546 21.5 774 30.5 535 21.06 211 8.31 3 8556207
DSF800U 3 DSF270+DSF530 1025 40.35 563 22.17 774 30.5 535 21.06 211 8.31 3 8556207
DSF970E 4, 7, 9 DSF485+DSF485 1025 40.35 546 21.5 774 30.5 640 25.2 211 8.31 4 8556205
DSF970E 3 DSF485+DSF485 1025 40.35 563 22.17 774 30.5 640 25.2 211 8.31 4 8556205
DSF855U 4, 7, 9 DSF325+DSF530 1025 40.35 546 21.5 774 305 640 25.2 211 8.31 4 8556220
DSF855U 3 DSF325+DSF530 1025 40.35 563 22.17 774 305 640 25.2 211 8.31 4 8556220
DSF1060E 4,7,9 DSF530+DSF530 1025 40.35 553 21.77 774 30.5 640 25.2 211 8.31 4 8556205
DSF1060E 3 DSF530+DSF530 1025 40.35 563 22.17 774 30.5 640 25.2 211 8.31 4 8556205

 NOTE:
Tandems to be achieved by assembly of individual compressors.
By convention, the last letter of tandems designation have been set to help to discern easily which type of manifold
we are considering.

U : Uneven tandem
E : Even tandem
X: Crossplatfom (medium-large) tandem

Trio assemblies
Figure 16: Outline drawing number 6 Figure 17: Outline drawing number 7

L1
L1
H1
H H1
H

L L
CC-000057

CC-000058

D D

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Scroll compressors, DSF090 to DSF530 | Dimensions

Figure 18: Outline drawing number 8 Figure 19: Outline drawing number 9

8556217

8556216
L1 L1
H1 H H1
H

L L

Table 13: Trio assemblies

Motor voltage L D H L1 H1 Outline drawing
Trio model Composition
code mm inch mm inch mm inch mm inch mm inch number
1230 48.4 402 15.8 571 22.5 205 8.1 242 9.5 6 8560172
DSF465T 4, 7, 9 3 x DSF155
1326 52.2 402 15.8 571 22.5 622 24.5 242 9.5 7 8560172
1230 48.4 433 17 571 22.5 205 8.1 242 9.5 6 8560172
DSF465T 3 3 x DSF155
1326 52.2 433 17 571 22.5 622 24.5 242 9.5 7 8560172
1230 48.4 402 15.8 571 22.5 205 8.1 242 9.5 6 8560172
DSF525T 4, 7, 9 3 x DSF175
1326 52.2 402 15.8 571 22.5 622 24.5 242 9.5 7 8560172
1230 48.4 433 17 571 22.5 205 8.1 242 9.5 6 8560172
DSF525T 3 3 x DSF175
1326 52.2 433 17 571 22.5 622 24.5 242 9.5 7 8560172
1236 48.7 433 17 587 23.1 205 8.1 242 9.5 6 8560171
DSF 600T 3, 7, 9 3 x DSF200
1326 52.2 433 17 587 23.1 622 24.5 242 9.5 7 8560171
1236 48.7 404 15.8 587 23.1 205 8.1 242 9.5 6 8560171
DSF 600T 4 3 x DSF200
1326 52.2 404 15.8 587 23.1 622 24.5 242 9.5 7 8560171
DSF810T 3, 4, 7, 9 DSF270+DSF270+DSF270 1467 57.76 543 21.38 701 27.6 535 min 21.06 211 8.31 8 8556217
DSF975T 3, 4, 7, 9 DSF325+DSF325+DSF325 1467 57.76 543 21.38 701 27.6 535 min 21.06 211 8.31 8 8556217
DSF1180T 3, 4, 7, 9 DSF325+DSF325+DSF530 1467 57.76 573 22.56 774 30.5 535 min 21.06 211 8.31 8 8556310
DSF1180T 3 DSF325+DSF325+DSF530 1467 57.76 590 23.23 774 30.5 535 min 21.06 211 8.31 8 8556310
DSF1385T 3, 4, 7, 9 DSF530+DSF530+DSF325 1520 59.84 573 22.56 774 30.5 640 min 25.19 244 9.61 9 8556314
DSF1385T 3 DSF530+DSF530+DSF325 1520 59.84 573 22.56 774 30.5 640 min 25.19 244 9.61 9 8556314
DSF1590T 3, 4, 7, 9 DSF530+DSF530+DSF530 1520 59.84 573 22.56 774 30.5 640 min 25.19 244 9.61 9 8556216
DSF1590T 3 DSF530+DSF530+DSF530 1520 59.84 590 23.23 774 30.5 681 min 26.77 244 9.61 9 8556216

 NOTE:
Trio to be achieved by assembly of individual compressors.

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Scroll compressors, DSF090 to DSF530 | Mechanical connections

Mechanical connections

Connection details
Table 14: Connection details
Connection Details DSF090-100 DSF115-200 DSF270-325 DSF485-530

Suction connection Brazed 1"1/8 Brazed 1"3/8 Brazed 1"5/8 Brazed 1"5/8

Discharge connection Brazed 7/8" Brazed 7/8" Brazed 1"1/8 Brazed 1"3/8

Oil sight glass Threaded (1"1/8 – 18 UNEF)

Oil equalization connection Rotolock 1"3/4 Rotolock 2"1/4

Oil drain connection None None Female ¼" Flare incorporating a Schrader valve

Low pressure gauge port (Shrader) Male ¼" Flare incorporating a Schrader valve

Outline drawing 1 1 2 2

Figure 20: Outline drawing 1 Figure 21: Outline drawing 2

CC-000167
CC-000168

Design compressor mounting

General requirements
Compressors used in single applications must be mounted with flexible grommets.

Compressors used in parallel applications must be mounted with rigid spacers onto rails (or directly on rails
according to compressor models) and the manifold assembly must be mounted with flexible grommets onto the
frame.

During operation, the maximum inclination from the vertical plane must not exceed 3 degrees.

Single requirements DSF090-200 mounting

Compressors DSF090-200 are delivered with rubber grommets and steel mounting sleeve used to isolated the
compressor from the base frame.

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Scroll compressors, DSF090 to DSF530 | Mechanical connections

The grommets must be compressed until contact between the flat washer and the steel mounting sleeve is
established. The required bolt size for the DSF090-200 compressors is HM8-40. This bolt must be tightened to a
torque of 15Nm.

Figure 22: Rubber grommets

1 1 Tightening torque 15 Nm

2 2 HM 8 bolt (4 pcs)
3 3 Lock washer (4 pcs)
4
4 Flat washer (4 pcs)

(0.59 Inch)
5 5 Steel mounting sleeve (4 pcs)
15 mm 6 Rubber grommet (4 pcs)
6
7 Nut (4 pcs)

7 Part 2, 3, 4, 5, 6 and 7 are delivered along with

cc-0048
compressor

Single requirements, DSF270-325-485-530 mounting

To be used in single applications, an additional accessory including flexible grommets is necessary kit 8156138.

The grommets must be compressed until contact between the flat washer and the steel mounting sleeve is
established. The required bolt size for the DSF compressors is HM8-55. This bolt must be tightened to a torque of 21
Nm.

Figure 23: Rubber grommets from kit 8156138 Figure 24: Rubber grommets

2
3 8
4

5
(1.08 inch)
27.5 mm

7
CC-0000001

1 CC-0049

1 Rubber grommets from kit 8156138 5 Steel mounting sleeve

2 HM 8 bolt 6 Rubber grommet
3 Lock washer 7 Nut
4 Flat washer 8 Compressor base plate

Manifolding requirements DSF 180E-400E and DSF285U-305U-330U mounting

The compressors must be mounted with rigid mounting spacers on rails. Rubber grommets and spacers must be
installed below the rails.

The rigid mounting spacers are included in tandem accessory kits. The rubber grommets are supplied with
compressor.

For more details about parallel mounting feet, please see parallel unit outline drawing.

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Scroll compressors, DSF090 to DSF530 | Mechanical connections

Figure 25: DSF 180E-400E and DSF285U-305U-330U mounting

1 Tightening torque 15Nm
1
2 Not supplied Φ8x75mm 0.31x2.95inch
3 Tightening torque 15Nm
2
4 4mm (0.16 inch) thickness
3 Supplied with the compressor
Included in manifolding kit
Not supplied
4

CC-000002

Manifolding requirements DSF 215U-230U-255U-275U-300U-315U-331U-355U-375U mounting

The compressors must be mounted with rigid mounting spacers on rails. Rubber grommets and spacers must be
installed below the rails.

The rigid mounting spacers are included in tandem accessory kits. The rubber grommets are supplied with
compressor.

Figure 26: Smaller model of tandem Figure 27: Larger model of tandem

1
1

2
2
3
3
5 4
4
CC-000004
CC-000003

1 Tightening torque 15Nm 5 Additional rigid spacer (Refer to table below)

2 Not supplied HM8mm 0.31 inch Supplied with the compressor
3 Tightening torque 15 Nm Included in manifolding kit
4 4mm (0.16 inch) Thickness Not supplied

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Scroll compressors, DSF090 to DSF530 | Mechanical connections

Table 15: Additionnal rigid spacer

Additionnal rigid spacer Additional right spacer(to be added on the smallest compressor of the tan‐
dem)
DSF215U-230U-255U-275U-315U-331U-355U-375U 7mm
DSF300U 14mm

Tandem requirements DSF465T-525T-600T mounting

The compressors must be mounted with rigid mounting spacers on rails. Rubber grommets and spacers must be
installed below the rails.

The rigid mounting spacers and rubber grommets are included in tandem accessory kits.

1 Tightening torque 15Nm

2 Not supplied HM8mm 0.31 inch
1
3 Tightening torque 15 Nm
4 3mm (0.12inch) Thickness
2
Supplied with the compressor
3
Included in manifolding kit
Not supplied
4
CC-000009

Tandem requirements DSF400X-470X-500X-525X mounting

The large compressor, DSF270,325, is mounted with rigid spacers on the rails.

The DSF130, 175,200 compressor is fixed on beams by rigid spacer, and the beams are mounted with rigid spacers
on the rails. Rubber grommets and spacers must be installed below the rails.
Figure 28: DSF270-325 Figure 29: DSF130-175-200

1
6
2
7
3

5 5
CC-000010

CC-000011

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Scroll compressors, DSF090 to DSF530 | Mechanical connections

1 Tightening torque 16Nm 6 Tightening torque 15Nm

2 Not supplied Φ10mm 7 4mm (0.16inch) thickness
3 Tightening torque 50Nm Supplied with the compressor
4 Tightening torque 55Nm Included in manifolding kit
5 5mm (0.2inch) thickness Not supplied

Tandem requirements, DSF540E to DSF1590T mounting

For parallel mounting, the compressors can be mounted directly on the rails. Rubber grommets and spacers must be
installed below the rails.

These parts are included in accessories.

Figure 30: DSF540E to DSF1590T mounting

1 HM 10 x 30 class 10.9, Tightening torque 50 Nm

1 2 HM 10 x 100 class 10.9, Tightening torque 50

Nm
2
3 Thickness: 5 mm (0.2 inch)
Included in tandem/trio kit
Not supplied

3
CC-000012

Design piping
General requirements
Proper piping practices should be employed to:

1. Ensure adequate oil return, even under minimum load conditions (refrigerant speed, piping slopes…). For
validation tests see section Manage oil in the circuit.
2. Avoid condensed liquid refrigerant from draining back to the compressor when stopped (discharge piping
upper loop). For validation tests see section Manage off cycle migration.
3. Piping should be designed with adequate three-dimensional flexibility to avoid excess vibration. It should not be
in contact with the surrounding structure, unless a proper tubing mount has been installed. For more
information on noise and vibration, see section Sound and vibration data.

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Scroll compressors, DSF090 to DSF530 | Mechanical connections

Figure 31: Proper piping - Evaporator

CC-0043
1 Evaporator
5
2 0.5% slope
HP
3 4m/s or more
6
4 8 to 12 m/s
2 LP
5 To condenser
3
6 U-trap, as short as possible
4 m*
* Max.
6

4
4 m*
1
2
3

Figure 32: Proper piping - Condenser

CC-000162
1 3D flexibility
2 2 Upper loop
3 Condenser

HP 3

LP

Tandem and Trio requirements (Static)

DSF tandem and trio use static oil balancing principle to equalize oil level between the compressors by gravity. This
is ensured by a precise suction and oil equalization piping design.

The discharge line has no impact on oil balancing. It is shown with tee, to indicate that both left and right side
discharge headers are possible.

By default, DSF tandems and trios are not factory-built.

To complete an assembly in the field, you will need:
• Tubings, according to specific outline drawings indicated in the following table
• Manifolding accessory kit
• Compressors

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Scroll compressors, DSF090 to DSF530 | Mechanical connections

Suction and oil equalization piping drawings must be respected (diameters, minimum straight lengths, …).

Suction washer position

Depending on manifold configuration, it is essential to equalize the pressure of compressor sumps. Hence, a
suction washer must be added on certain compressors according to the table. Suction washers are included in
tandem or trio accessory kits as described in the illustrations.

Figure 33: Suction washer position

Included in tandem or trio accessory kit
Not supplied
CC-000037

By convention, the compressor order (No.1, No.2 ...) is defined counting from left to right, placed on the side facing
the electrical boxes of the compressors (see example below on a trio)

Figure 34: Example of right suction Figure 35: Example of left suction

Cp3 2
Cp1
Cp2 Cp2
Cp3 Cp1

CC-000035
1 CC-000036

1 Trio models with Right suction Cp2 Compressor 2

2 Trio models with Left suction Cp3 Compressor 3
Cp1 Compressor 1

Tandem models

Table 16: Tandem models

Outline
Tandem Oil equali‐ Suction Washer in Tandem kit
Composition Suction Discharge drawing Washer inner diameter
model zation from suction of code no
number
Left
DSF180E DSF090+DSF090 1"5/8 1"3/8 1"1/8 8560144 Not needed 120Z0634
Right
Left
DSF200E DSF100+DSF100 1"5/8 1"3/8 1"1/8 8560144 Not needed 120Z0634
Right
Left 25 mm (0.98 inch) Cp2
DSF215U DSF100+DSF115 1"5/8 1"3/8 1"1/8 8560189 120Z0694
Right 26 mm (1.02 inch) Cp2

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Scroll compressors, DSF090 to DSF530 | Mechanical connections

Outline
Tandem Oil equali‐ Suction Washer in Tandem kit
Composition Suction Discharge drawing Washer inner diameter
model zation from suction of code no
number
Left
DSF230E DSF115+DSF115 1"5/8 1"3/8 1"1/8 8560145 Not needed 120Z0634
Right
Left 27mm (1.06 inch) Cp2
DSF230U DSF100+DSF130 1"5/8 1"3/8 1"1/8 8560189 120Z0694
Right 27mm (1.06 inch) Cp2
Left 23 mm (0.91 inch) Cp1
DSF255U DSF100+DSF155 1"5/8 1"3/8 1"1/8 8560189 120Z0694
Right 23 mm (0.91 inch) Cp1
Left
DSF260E DSF130+DSF130 1"5/8 1"3/8 1"1/8 8560145 Not needed 120Z0634
Right
Left 21 mm (0.83 inch) Cp1
DSF275U DSF100+DSF175 1"5/8 1"3/8 1"1/8 8560189 120Z0694
Right 21 mm (0.83 inch) Cp1
Left 27 mm (1.06 inch) Cp1
DSF285U DSF130+DSF155 1"5/8 1"3/8 1"1/8 8560168 120Z0692
Right 27 mm (1.06 inch) Cp1
Left 20 mm (0.79 inch) Cp1
DSF300U DSF100+DSF200 1"5/8 1"3/8 1"1/8 8560190 120Z0693
Right 20 mm (0.79 inch) Cp1
Left 25 mm (0.98 inch) Cp1
DSF305U DSF130+DSF175 1"5/8 1"3/8 1"1/8 8560168 120Z0692
Right 25 mm (0.98 inch) Cp1
Left
DSF310E DSF155+DSF155 1"5/8 1"3/8 1"1/8 8560145 Not needed 120Z0634
Right
Left 23 mm (0.91 inch) Cp1
DSF315U DSF115+DSF200 1"5/8 1"3/8 1"1/8 8560167 120Z0693
Right 23 mm (0.91 inch) Cp1
Left 27.5 mm (1.08 inch) Cp1
DSF330U DSF155+DSF175 1"5/8 1"3/8 1"1/8 8560168 120Z0692
Right 26 mm (1.02 inch) Cp1
Left 24 mm (0.94 inch) Cp1
DSF331U DSF130+DSF200 1"5/8 1"3/8 1"1/8 8560167 120Z0694
Right 24 mm (0.94 inch) Cp1
Left
DSF350E DSF175+DSF175 1"5/8 1"3/8 1"1/8 8560145 Not needed 120Z0634
Right
Left 25 mm (0.98 inch) Cp1
DSF355U DSF155+DSF200 1"5/8 1"3/8 1"1/8 8560167 120Z0694
Right 25 mm (0.98 inch) Cp1
Left 27.5 mm (1.08 inch) Cp1
DSF375U DSF175+DSF200 1"5/8 1"3/8 1"1/8 8560167 120Z0694
Right 27.5 mm (1.08 inch) Cp1
Left
DSF400E DSF200+DSF200 1"5/8 1"3/8 1"1/8 8560146 Not needed 120Z0634
Right
Left 24 mm (0.94 inch) Cp1
DSF400X DSF130+DSF270 2"1/8 1"3/8 1"3/8 8560169 120Z0709
Right 25 mm (0.98 inch) Cp1
Left 35.5 mm (1.4 inch) CP2
DSF470X DSF200+DSF270 2"1/8 1"3/8 1"3/8 8560170 120Z0709
Right 35.5 mm (1.4 inch) CP2
Left 25 mm (0.98 inch) Cp1
DSF500X DSF175+DSF325 2"1/8 1"3/8 1"3/8 8560169 120Z0709
Right 26 mm (1.02 inch) Cp1
Left 26 mm (1.02 inch) Cp1
DSF525X DSF200+DSF325 2"1/8 1"3/8 1"3/8 8560170 120Z0709
Right 26 mm (1.02 inch) Cp1
Left
DSF540E DSF270+DSF270 2"1/8 1" 5/8 1" 3/8 8556228 Not needed 120Z0792
Right
Left
DSF595U DSF270+DSF325 2"1/8 1" 5/8 1" 3/8 8556228 31 mm (1.22 inch) Cp1 120Z0796
Right
Left
DSF650E DSF325+DSF325 2"1/8 1" 5/8 1" 3/8 8556228 Not needed 120Z0792
Right
Left
DSF800U DSF270+DSF530 2"1/8 1" 5/8 1" 5/8 8556207 24 mm (0.94 inch) Cp1 120Z0786
Right
Left
DSF970E DSF485+DSF485 2"5/8 1" 5/8 1" 5/8 8556205 Not needed 120Z0785
Right
Left
DSF855U DSF325+DSF530 2"5/8 1" 5/8 1" 5/8 8556220 27 mm (1.06 inch) Cp1 120Z0787
Right
Left
DSF1060E DSF530+DSF530 2"5/8 1" 5/8 1" 5/8 8556205 Not needed 120Z0785
Right

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Scroll compressors, DSF090 to DSF530 | Mechanical connections

Trio models

Table 17: Trio models

Outline
Oil equali‐ Suction Washer in Trio kit
Trio model Composition Suction Discharge drawing Washer inner diameter
zation from suction of code no
number
26 mm (1.02 inch) CP1
Left
25 mm (0.98 inch) CP3
DSF465T 3xDSF155 2"1/8 1"3/8 1"1/8 8560172 120Z0714
26 mm (1.02 inch) CP1
Right
24 mm (0.94 inch) CP3
26 mm (1.02 inch) CP1
Left
25 mm (0.98 inch) CP3
DSF525T 3xDSF175 2"1/8 1"3/8 1"1/8 8560172 120Z0714
26 mm (1.02 inch) CP1
Right
25 mm (0.98 inch) CP3
26 mm (1.02 inch) CP1
Left
25 mm (0.98 inch) CP3
DSF600T 3xDSF200 2"1/8 1"3/8 1"1/8 8560171 120Z0714
25.5 mm (1.00 inch) CP1
Right
25 mm (0.98 inch) CP3
Left 30 mm (1.18 inch) Cp3 120Z0784
DSF810T DSF270+DSF270+DSF270 2"5/8 1" 5/8 1" 5/8 8556217
Right 34.5 mm (1.36 inch) Cp1 & Cp3 120Z0794
Left 30 mm (1.18 inch) Cp3 120Z0784
DSF975T DSF325+DSF325+DSF325 2"5/8 1" 5/8 1" 5/8 8556217
Right 34.5 mm (1.36 inch) Cp1 & Cp3 120Z0794
Left - - 120Z0790
DSF1180T DSF325+DSF325+DSF530 2"5/8 2" 1/8 1" 5/8 8556310
Right 29 mm (1.14) Cp1 & Cp2 120Z0815
Cp1
DSF325+DSF530+DSF530 Left 26 mm (1.02)
(DSF325)
DSF1385T 3"1/8 2" 1/8 1" 5/8 8556314 120Z0814
Cp3
DSF530+DSF530+DSF325 Right 26 mm (1.02)
(DSF325)
Left
DSF1590T DSF530+DSF530+DSF530 3"1/8 2" 1/8 1" 5/8 8556216 33 mm (1.3 inch) Cp2 & Cp3 120Z0793
Right

Oil equalization DSF180E-400E

The oil level is balanced by a pipe of 1"1/8 oil equalization line.

In order ensure best oil balance, the organ pipe need to be mounted inside the oil equalization port as indicated on
below picture. To connect the equalization line on rotolock connections, the organ pipe adaptor and teflon gasket
are included in the tandem kit must be used.

1 Organ pipe
1 2
2 Tightening torque 100Nm
Supplied with the compressor
Included in tandem kit

CC-000034

The organ pipe needs to be installed in the direction indicated by the label attached on pipe surface, which will
ensure best oil balance.

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Scroll compressors, DSF090 to DSF530 | Mechanical connections

Oil equalization design DSF 400X-470X-500X-525X

The oil level is balanced by a pipe of 1"3/8 oil equalization line.

In order to ensure best oil balance, the organ pipe need to be mounted inside the DSF130, DSF175, DSF200 oil
equalization port as indicated on below picture. DSF270, DSF325 has integrated organ pipe inside the oil
equalization port.

To connect the equalization line on rotolock connections, the organ pipe, adaptor sleeves, Teflon gaskets included
in the tandem accessory kit must be used.

Figure 36: For DSF130, DSF175, DSF200 Figure 37: For DSF270, DSF325

1 2 3

CC-000032 CC-000033

1 Organ pipe Supplied with the compressor

2 Tightening torque 100Nm Included in tandem kit
3 Tightening torque 145Nm

Oil equalization design DSF270-530

The oil level is balanced by a pipe of 1"3/8 or 1"5/8. To connect the equalization line on rotolock connections, the
adaptor sleeves included in the tandem or trio accessory kit must be used.

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Scroll compressors, DSF090 to DSF530 | Mechanical connections

Figure 38: DSF270, DSF530

3 Tightening torque 145 Nm
3
Supplied with the compressor
Included in tandem kit

CC-000033

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Scroll compressors, DSF090 to DSF530 | Electrical connections

Electrical connections

Wiring connections
According to compressor model, electrical power is connected to the compressor terminals either by 4.8mm (10-32)
screws or by M5 studs and nuts. In both cases the maximum tightening torque is 3 Nm.

Cable gland or similar protection component must be used on electrical box's knockouts to against accidental
contact with electrical parts inside.

DSF090-200(except DSF155/175 code3 DSF200 code3/7/9)

The terminal box is provided with a Ø 25.5mm (φ1 inch) (ISO25) and a Ø 29mm (φ1.14) (PG21) knockouts.

Figure 39: Wiring connections for DSF090-200(except DSF155/175 code3 DSF200 code3/7/9)
1 Terminal box
1
2 Ø 29mm (φ1.14inch) knockout
3 Ø 25.5mm (φ1inch) knockout
4 Power supply

2
3
4
CC-0031

DSF155/175 code3 DSF200 code3/7/9

The terminal box is provided with a Ø 43.7mm (φ1.72inch) hole (UL 1"1/4 conduit) for power supply and 3 other
knockout holes:

• Ø22.2mm (φ 0.87inch) (PG16) (UL 1/2")

• Ø16.5mm (φ 0.65inch) (ISO16) (x2)

Figure 40: Wiring connections for DSF155/175 code3 DSF200 code3/7/9

1 Ø 16.5mm (φ0.65inch) knockout
EB-000002
Danfoss

2 Ø22.2mm (φ 0.87inch) knockout

3 Ø 43.7mm (φ1.72inch) hole
4 Power supply

2
3
4

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Scroll compressors, DSF090 to DSF530 | Electrical connections

DSF270-325-485-530
The terminal box is provided with 2 triple knockouts and 1 single knockout for power supply and 4 double
knockouts for the safety control circuit.

The 3 power supply knockouts accommodate the following diameters:

• Ø 50.8 mm (φ 2 inch) (UL 1"1/2 conduit) & Ø 43.7 mm (φ 1.72 inch) (UL 1"1/4 conduit) & Ø 34.5 mm (φ 1.36 inch)
(UL 1" conduit)
• Ø 40.5 mm (φ 1.59 inch) (ISO40) & Ø 32.2 mm (φ 1.27 inch) (ISO32) & Ø 25.5 mm (φ 1 inch) (ISO25)
• Ø 25.5 mm (φ 1 inch) (ISO25)

The 4 others knockouts are as follows:

• Ø 22.5 mm (φ 0.89 inch) (PG16) (UL 1/2") & Ø 16.5 mm (φ 0.65 inch) (ISO16) (x2)
• Ø 20.7 mm (φ 0.81 inch) (ISO20 or PG13.5) (x2)

Figure 41: Wiring connections for DSF270-325-485-530

1 1 Black
2
2 Blue
3
1

L1 L2 L3
3 Brown
2

L N S1 S2 M1 M2
3 4 M1, M2 Control circuit
4 5 Module power supply
5 6 Sump heater
7 Faston 1/4" tabs
6
8 Power supply
7
8
CC-0517

DSF485 and DSF530 code 3

The terminal box is provided with 2 triple knockouts for power supply, 2 double knockouts and 3 simple knockouts
for the safety control circuit.

The 2 power supply knockouts accommodate the following diameters:

• Ø 63.5mm (φ 2.5inch) (ISO63 and UL 2"conduit) & Ø 54.2mm (φ 2.13inch) (PG42)& 43.7mm (UL 1"1/4 conduit)

The 5 other knockouts are as follows:

• Ø 22.5mm (φ 0.89inch) (PG16) (UL 1/2") & Ø 16.5mm (φ 0.65 inch) (ISO16)
• Ø 25.5mm (φ 1inch) (ISO25) & 20mm (φ 0.79inch) (ISO20 or PG13.5)
• Ø 22.5mm (φ 0.89inch) (PG16) (UL 1/2")
• Ø 25.5mm (φ 1inch) (ISO25) (x2)

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Scroll compressors, DSF090 to DSF530 | Electrical connections

Figure 42: Wiring connections for DSF485 and DSF530 code 3

1 M1, M2 Control circuit
2 Power supply

1
2

CC-000013

Motor protection module

The motor protection modules come preinstalled within the terminal box. Phase sequence protection connections
and thermistor connections are pre-wired and should not be removed.

The module must be connected to a power supply of the appropriate voltage. The module terminals are 6.3 mm
(0.25 inch) size Faston type.

Figure 43: Motor protection module

1 L1 Black
L2 Blue
L3 Brown
L1 L2 L3 2
1 Phase sequence input
2 Internal control contact
L N S1 S2 M1 M2
3 3 Safety circuit
4
4 Thermistor connection
CC-0035

5
5 Module power

Electrical specifications
Motor voltage
Danfoss scroll compressors DSF are available in motor voltage listed below.

Table 18: Motor voltage

Frequency Motor voltage code Code 3 Code 4 Code 7 Code 9
380-415V-3ph
50 Hz Nominal voltage - - -
400V-3ph(1)
60 Hz Nominal voltage 208-230V-3ph 460V-3ph 575V-3ph 380-400V-3ph

(1)
DSH090-200

 NOTE:
Voltage range: Nominal voltage ± 10%. The voltage range indicates where the compressor can run in the majority
of the application envelope. A boundary voltage supply which accumulates under specific conditions such as high
ambiance, high superheat, or map boundary conditions, may lead to a compressor trip.

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Scroll compressors, DSF090 to DSF530 | Electrical connections

Voltage imbalance

The maximum allowable voltage imbalance is 2%. Voltage imbalance causes high amperage over one or several
phases, which in turn leads to overheating and possible motor damage. Voltage imbalance is given by the formula:

| Vavg − V1−2 | + | Vavg − V1−3 | + | Vavg − V2−3 |

% voltage imbalance = × 100
2 × Vavg

Vavg Mean voltage of phases 1, 2, 3.

V1-2 Voltage between phases 1 and 2.
V1-3 Voltage between phases 1 and 3.
V2-3 Voltage between phases 2 and 3.

IP rating
The compressor terminal box according to IEC60529 is IP54 for all models when correctly sized IP54 rated cable
glands are used.

First numeral, level of protection against contact and foreign objects

5 - Dust protected

Second numeral, level of protection against water

4 - Protection against water splashing

Terminal box temperature

The temperature inside the terminal box must not exceed 70 °C (158 °F). Consequently, if the compressor is
installed in an enclosure, precautions must be taken to avoid that the temperature around the compressor and in
the terminal box would rise too much. A ventilation installation on the enclosure panels may be necessary. If not,
the electronic protection module may not operate properly. Any compressor damage related to this will not be
covered by Danfoss warranty. In the same manner, cables must be selected in a way that ensures the terminal box
temperature does not exceed 70 °C (158 °F).

Three phase electrical characteristics

Table 19: Motor voltage code3
LRA RLA Max operating current Winding resistance
Compressor model
A A A Ω
DSF090 203 31 34 0.39
DSF100 203 32 37 0.39
DSF115 267 38 44 0.27
DSF130 267 44 48 0.27
DSF155 304 41 55 0.24
DSF175 315 47 62 0.22
DSF200 351 56 70 0.22
DSF270 471 70 96 0.16
DSF325 574 84 118 0.13
DSF485 824 142 174 0.17
DSF530 824 137 190 0.17

Table 20: Motor voltage code4

LRA RLA Max operating current Winding resistance
Compressor model
A A A Ω
DSF090 98 17.1 17 1.47
DSF100 98 17.9 19 1.47
DSF115 142 20 22 1.05
DSF130 142 22.9 24 1.05

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Scroll compressors, DSF090 to DSF530 | Electrical connections

LRA RLA Max operating current Winding resistance

Compressor model
A A A Ω
DSF155 147 25.7 27 0.92
DSF175 158 26.4 30 0.83
DSF200 197 28.5 34 0.83
DSF270 222 38 42 0.7
DSF325 263 45 52 0.56
DSF485 389 76 80 0.28
DSF530 389 74 87 0.28

Table 21: Motor voltage code7

LRA RLA Max operating current Winding resistance
Compressor model
A A A Ω
DSF090 84 12 13 2.34
DSF100 84 13 14 2.34
DSF115 103 17 16 1.57
DSF130 103 17 18 1.57
DSF155 122 18 21 1.38
DSF175 136 22 23 1.32
DSF200 135 24 26 1.32
DSF270 181 28 35 0.94
DSF325 212 34 43 0.82
DSF485 303 54 63 0.67
DSF530 303 56 68 0.67

Table 22: Motor voltage code9

LRA RLA Max operating current Winding resistance
Compressor model
A A A Ω
DSF090 124 19 19 1.05
DSF100 124 21 20 1.05
DSF115 160 25 24 0.72
DSF130 160 26 27 0.72
DSF155 168 25 30 0.62
DSF175 177 29 34 0.57
DSF200 239 37 39 0.57
DSF270 276 43 53 0.42
DSF325 317 52 65 0.36
DSF485 479 76 96 0.29
DSF530 479 83 104 0.29

LRA (Locked Rotor Amp)

Locked Rotor Amp value is the higher average current as measured on mechanically blocked compressors tested
under nominal voltage. The LRA value can be used as a rough estimation for the starting current. However, in most
cases, the real starting current will be lower. A soft starter can be applied to reduce starting current (see section Soft
starts).

RLA (Rated Load Amperage)

The RLA values presented are simply calculated by dividing the maximum current before tripping at overload test
conditions by 1.4.

MOC (Maximum Operating Current)

The max operating current is the amperage the compressor will draw when it operates at maximum load of
operating envelope within the voltages printed on the nameplate.

MOC can be used as a basis for contactors selection.

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Scroll compressors, DSF090 to DSF530 | Electrical connections

Winding resistance

Winding resistance is the resistance between phases at 25°C (77°F) (resistance value +/- 7%). Winding resistance is
generally low and it requires adapted tools for precise measurement. Use a digital ohm-meter, a “4 wires” method
and measure under stabilised ambient temperature. Winding resistance varies strongly with winding temperature. If
the compressor is stabilised at a different value than 25°C (77°F), the measured resistance must be corrected using
the following formula:

a + tamb
Rtamb = R25°C (77°F)
a + t25°C (77°F)

t25°C reference temperature = 25°C (77°F)

tamb temperature during measurement °C (°F)

R25°C (77°F) winding resistance at 25°C (77°F)

Ramb winding resistance at tamb

a Coefficient a = 234.5

Motor protection
DSF090 to DSF200

Compressor models DSF090 to 200 are provided with internal overload motor protection to prevent against
excessive current and temperature caused by overloading, low refrigerant flow or phase loss.

The protector is located in star point of motor and, should it be activated, will cut out all three phases. It will be reset
automatically.

While not compulsory, an additional thermal magnetic motor circuit breaker is still advisable for either alarm or
manual reset.

Then it must be set at max operating current:

• When the motor temperature is too high, then the internal protector will trip.
• When the current is too high the thermal magnetic motor circuit breaker will trip before the internal protection
therefore offering possibility of manual reset.

DSF270 to DSF530

DSF compressors are delivered with a pre-installed motor protection module inside the terminal box. This device
provides efficient and reliable protection against overheating and overloading as well as phase loss/reversal.

The motor protector comprises a control module and PTC sensors embedded in the motor winding.

The motor temperature is being constantly measured by a PTC thermistor loop connected on S1-S2 . If any
thermistor exceeds its response temperature, its resistance increases above the trip level (4.500 Ω) and the output
relay then trips – i.e. contacts M1-M2 are open. After cooling to below the response temperature (resistance < 2.750
Ω), a 5-minute time delay is activated.

After this delay has elapsed, the relay is once again pulled in – i.e. contacts M1-M2 are closed. The time delay may be
cancelled by means of resetting the mains (L-N -disconnect) for approximately 5 sec.

A red/green twin LED is visible on the module. A solid green LED denotes a fault free condition. A blinking red LED
indicates an identifiable fault condition:

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Scroll compressors, DSF090 to DSF530 | Electrical connections

Figure 44: PTC Overheat Figure 45: Delay timer active (after PTC over temp.)

40 ms 460 ms 40 ms 460 ms 80 ms 920 ms

1s* 1s*

* approx. 1 second * approx. 1 second

While not compulsory, an additional thermal magnetic motor circuit breaker is still advisable for either alarm or
manual reset.

Then it must be set below max operating current:

• When the motor temperature is too high, then the internal PTC over temp. and module is activated.
• When the current is too high the thermal magnetic motor circuit breaker will trip before the module activate
therefore offering possibility of manual reset.

Phase sequence and reverse rotation protection

Use a phase meter to establish the phase orders and connect line phases L1, L2 and L3 to terminals T1, T2 and T3,
respectively.

DSF090 to DSF200

Compressor models DSF090 to 200 incorporates an internal reverse vent valve which will react when the
compressor is run in reverse and will allow refrigerant to circulate through a by-pass from the suction to the
discharge. Although reverse rotation is not destructive for these models, it should be corrected as soon as possible.
Repeated reverse rotation over 24 hours may have negative impact on the bearings.

Reverse rotation will be obvious to the user as soon as power is turned on: the compressor will not build up
pressure, the sound level will be abnormally high and power consumption will be minimal. If reverse rotation
symptoms occur, shut the compressor down and connect the phases to their proper terminals. If reverse rotation is
not halted, the compressor will cycle off-on the motor protection.

DSF270 to DSF530

Use a phase meter to establish the phase orders and connect line phases L1, L2 and L3 to terminals T1, T2 and T3,
respectively.

Compressor models DSF270 to 530 are delivered with an electronic module which provides protection against
phase reversal and phase loss at start-up.

The phase sequencing and phase loss monitoring functions are active during a 5-sec window 1 second after
compressor start-up (power on L1-L2-L3).

Figure 46: Phase sequence module logic

Cp Compressor
Cp Ph Phase monitoring
St
Ph St start
0 1s 6s

Should one of these parameters be incorrect, the relay would lock out (contact M1-M2 open). The red LED on the
module will show the following blink code:

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Scroll compressors, DSF090 to DSF530 | Electrical connections

Figure 47: In case of phase reverse error Figure 48: In case of phase loss error

120 ms 120 ms 120 ms 400 ms 500 ms 500 ms

760 ms* 1 s*

* Approximate * Approximate

The lockout may be cancelled by resetting the power mains (disconnect L-N) for approximately 5 seconds.

For more detailed information see “Instructions for electronic module” AN160986418236.

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Scroll compressors, DSF090 to DSF530 | Application

Application

Manage oil in the circuit

Requirement
Oil level must be visible or full in the sight glass when the compressor is running and when all compressors of
the circuit are stopped. For DSF155-200 trio models, top-up oil quantity 1L at least as mandatory.

System evaluation
Table 23: System evaluation
Split type Single compressor Manifold compressors
Non split Test No.1 Test No.1+2
Split Test No.1+3 Test No.1+2+3

Test, criteria and solutions

Table 24: Test, criteria and solutions
Test No. Purpose Test conditions Pass criteria Solutions
1 Check proper oil Oil level must be visible or full in the 1. Top-up with oil, generally 3% of
return
A sight glass when the compressor is the total system refrigerant
running and when all compressors of charge (in weight). Above 3%
the circuit are stopped. look for potential oil trap in the
system.
2. Integrate a function in control
logic to run all compressors si-
Lowest foreseeable evaporation, and highest foreseea-
multaneously in order to boost
ble condensation.
oil return (for more details see
Minimum number of compressor running for 6 hours.
section Control logic).
For reversible system, perform test in both heating and
3. Oil separator can be added
cooling mode.
2 Check oil balanc- Oil level must be visible or full in the 1. Top-up with oil, generally 3% of
ing
A sight glass when the compressors the total system refrigerant
are running and when all compres- charge (in weight).
sors of the circuit are stopped 2. Check that manifold piping is
conform to Danfoss require-
ments.
3. Integrate a function in control
Lowest foreseeable evaporation and highest foreseeable
logic to stop manifold periodi-
condensation and nominal capacity condition
cally in order to balance oil (for
For tandem 2 compressors running for 6 hours, for trio,
more details see section Control
compressor running follow the running sequence:
(1+2+3)2hrs→ (1+2)2hrs →(2+3)2hrs→(1+3)2hrs
logic).
For reversible system, perform test in both heating and
cooling mode.
3 Oil return in split Since each installation is unique, test 1 and 2 can not Oil level must be visible or full in the 1. Pay special attention to “Piping
systems fully validate the oil return. Oil level must be checked sight glass when the compressor is design”
and adjusted at commissioning. running and when all compressors of 2. Oil separator is strongly recom-
the circuit are stopped. mended, especially in case of
part load.

Manage sound and vibration

Sound radiations
We can consider two means to reduce compressors sound radiations:
1. Acoustic hoods are quick and easy to install and do not increase the overall size of the compressors. Acoustic
hoods are available from Danfoss as accessories. Refer to the tables above for sound levels, attenuation and code
numbers.
2. Use of sound-insulation materials on the inside of unit panels is also an effective mean to reduce sound
radiation.

 NOTE:
During compressor shut down, a short reverse rotation sound is generated. The duration of this sound depends on
the pressure difference at shut down and should be less than 3 seconds. This phenomenon has no impact on
compressor reliability.

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Scroll compressors, DSF090 to DSF530 | Application

Gas pulsation
DSF has been designed and tested to ensure that gas pulsation is optimized for the most commonly encountered
air conditioning pressure ratio. Manifolded compressors are equivalents to lagged sources of gas pulsation.
Therefore, pulse level can vary during time.

Mitigations methods:
If an unacceptable level is identified, a discharge muffler with the appropriate resonant volume and mass can be
installed.

Mitigation methods
Mitigations methods:
1. To ensure minimum vibrations transmission to the structure, strictly follow Danfoss mounting requirements
(mounting feet, rails etc..). For further information on mounting requirements, please refer to section Design
compressor mounting.
2. Ensure that there is no direct contact (without insulation) between vibrating components and structure.
3. To avoid resonance phenomenon, pipings and frame must have natural frequencies as far as possible from
running frequency. Solutions to change natural frequencies are to work on structure stiffness and mass
(brackets, metal sheet thickness or shape…).

Manage operating envelope

The Operating envelope data for DSF scroll compressors guarantees reliable operations of the compressor for
steady-state operation.

Steady-state operation envelope is valid for a suction superheat within 5K to 10K range at nominal Voltage.

Discharge temperature protection

DSF270 to DSF530 include an integrated discharge temperature protection. Excessive discharge temperature will
result in tripping of electronic module ouput relay.

This protection, effective for suction superheat above 5 – 10 K (9 – 18 °F), should be considered as a compressor
safety device and its purpose is not to ensure operation map control.

In case of basic map control by pressure switches that can not ensure totally that the compressor will remain in its
operating envelope, an additionnal external discharge protection is required. (see Figure 49: Discharge temperature
protection examples)

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Scroll compressors, DSF090 to DSF530 | Application

Figure 49: Discharge temperature protection examples

Evaporating temperature (°F)
-31 -22 -13 -4 5 14 23 32 41 50 59 68 77 86
70 158
DGT - limit
65 149
HP1
60 140
Example 1

Condensing temperature (°F)

Condensing temperature (°C)

55 131
HP2
50 122
Example 2
45 113
40 104
35 95
R32
30 86
25 77
20 LP1 LP2 68
15 59
10 50
5 41

-35 -30 -25 -20 -15 -10 -5 0 5 10 15 20 25 30

Evaporating temperature (°C) CC-000184

Example 1 (R32, SH = 5K)

LP switch setting: LP1 = 3.9 bar (g) (-15°C), HP switch setting: HP1 =40.2 bar (g) (62°C)
Risk of operation beyond the application envelope.
DGT protection required.

Example 2(R32, SH = 5K)

LP switch setting: LP2 = 4.8 bar (g) (-10°C), HP switch setting: HP2 = 32 bar (g) (52°C)
No risk of operation beyond the application envelope.
No DGT protection required.

DSF090 to DSF200 have no integrated discharge temperature protection, an external protection is required.

This external protection device can be a thermostat or a temperature sensor. The discharge gas temperature
protection must trip the power supply when it reaches the setting point to protect the compressor from
overheating.

The discharge gas protection should be set to open at a maximum discharge gas temperature of 150°C(302°F). A
PT1000 is recommended.

The discharge gas thermostat or sensor must be attached to the discharge line within 150mm (5.91 inch) from the
compressor discharge port and must be thermally insulated and tightly fixed on the pipe (see Figure 50: Discharge
Gas Temperature protection (DGT))

Figure 50: Discharge Gas Temperature protection (DGT)

1 Thermostat

1 2 Discharge line
2 3 Bracket
3
4 Insulation

4
CC-0056

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Scroll compressors, DSF090 to DSF530 | Application

System evaluation
HP and LP must be monitored to respect operating envelope limitations. We consider two types of operating
envelope management: Basic and Advanced.

Table 25: System evaluation

Basic Advanced
• HP and LP switch • HP and LP sensor
• MOP (Max Operating Pressure) ensured by expansion device • Operating envelope limits integrated into control logic
• Condensing pressure control • Temperature measurement (monitoring by sensor)
• DGT external setting points: max 150°C (302°F)
Whole operating envelope limits integrated into control logic
CC-000166
HP switch setting CC-000192

MOP < Max evap T°

T
DG
LP switch setting

2
nd
1a
ts No
tes
Condensing pressure control

Manage superheat
During normal operation, refrigerant enters the compressor as a superheated vapor. Liquid flood back occurs when
a part of the refrigerant entering the compressor is still in liquid state.

Liquid flood back can cause oil dilution and, in extreme situations lead to liquid slugging that can damage the
compressor.

Requirement
In steady state conditions the expansion device must ensure a suction superheat within 5 – 10 K (9 – 18 °F).

System evaluation
Use the table in relation with the application to quickly evaluate the potential tests to perform.

Table 26: System evaluation

Application Tests to perform
Non reversible Liquid flood back test
Liquid flood back test
Reversible
Defrost test

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Scroll compressors, DSF090 to DSF530 | Application

Test, criteria and solutions

Table 27: Test, criteria and solutions
Test Purpose Test condition Pass criteria Solutions
Liquid flood Steady-state Suction superheat >5 K (9 °F) 1. Check expansion valve se-
back test
A and the oil superheat shall not lection and setting.
◦ For Thermostatic ex-
be more than 60 sec below the
safe limit defined in the Dilu- pansion valve (TXV)
tion Chart (see graph below). check bulb position...
◦ For Electronic expan-
Liquid flood back testing must be carried out under expansion sion valve (EXV) check
valve threshold operating conditions: measurement chain
and PID....
• Lowest foreseeable evaporation, and highest foreseeable
2. Add a suction accumulator
condensation. (1)
• Minimum number of compressor running.
For reversible system, perform test in both heating and cooling
mode.

Transient Tests must be carried out with most unfavorable conditions : Oil superheat shall not be more
• fan staging than 60 sec per hour below the
• compressor staging safe limit defined in the Dilu-
• … tion Chart. (see graph below)
Defrost test Check liquid Defrost test must be carried out in the most unfavorable condi- Oil superheat shall not be more 1. Check defrost logic. In re-
floodback dur- tions (at 0 °C (32 °F) evaporating temperature). than 60 sec per hour below the versible systems, the de-
ing defrost cy- safe limit defined in the Dilu- frost logic can be worked
cle tion Chart. (see graph below) out to limit liquid flood-
back effect. (for more de-
tails see Control logic).
2. Add a suction accumulator
(1)

(1)
Suction accumulator offers protection by trapping the liquid refrigerant upstream from the compressor. The accumulator should be sized at
least 50 % of the total system charge. Suction accumulator dimensions can impact oil return (gas velocity, oil return hole size…), therefore oil
return has to be checked according to section Manage oil in the circuit.

Placing oil temperature sensor

Oil temperature sensor must be placed on the bottom of the baseplate. Some thermal paste shall be used to
improve the conductivity. The sensor must also be correctly thermally insulated from the ambiance.

The Oil superheat is defined as: (Oil temperature - Evaporating temperature)

Figure 51: Placing oil temperature sensor on the bottom of the baseplate
1 Oil temperature sensor must be placed on the bottom of the baseplate.
CC-000023

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Scroll compressors, DSF090 to DSF530 | Application

Dilution Chart - DSF090 to DSF200, R32

Figure 52: Dilution Chart (reference at 20 °C / 68 °F ambient temperature)

Evaporating Temperature (°F)

-22 -13 -4 5 14 23 32 41 50 59 68 77
25 45

22.5 40.5

20 36

Oil Superheat (°F）

17.5 31.5
Oil Superheat (K)

Safe Area
15 27

12.5 22.5

10 18

7.5 13.5

5 9
Unsafe Area (60 sec max per hour)
2.5 4.5

0 0
-30 -25 -20 -15 -10 -5 0 5 10 15 20 25
Evaporating Temperature (°C) CC-000185

Dilution Chart - DSF270 to DSF570, R32

Figure 53: Dilution Chart (reference at 20 °C / 68 °F ambient temperature)
Evaporating Temperature (°F)
-22 -13 -4 5 14 23 32 41 50 59 68 77
15 27

12.5 22.5

10 18
Oil Superheat (°F)
Oil Superheat (K)

Safe Area
7.5 13.5

5 9

Unsafe Area (60 sec max per hour)

2.5 4.5

0 0
-30 -25 -20 -15 -10 -5 0 5 10 15 20 25
Evaporating Temperature (°C) CC-000026

Manage off cycle migration

Off -cycle refrigerant migration happens:

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Scroll compressors, DSF090 to DSF530 | Application

• when the compressor is located at the coldest part of the installation, refrigerant vapor condenses in the
compressor.
• or directly in liquid-phase by gravity or pressure difference. When the compressor restarts, the refrigerant diluted
in the oil, or stored in evaporator, generates poor lubrication conditions, and may reduce bearings life time. In
extreme situations, this leads to liquid slugging that can damage the compressor scroll set.

Requirement
• Compressor can tolerate occasional flooded start, but it should remain exceptional situation and unit design must
prevent that this situation happen at each start.
• Right after start, liquid refrigerant must not flow massively to compressor
• The charge limit is a threshold beyond some protective measures must be taken to limit risk of liquid slugging and
extreme dilution at start.

System evaluation
Use the Table 30: Charge limits for Single models and Table 31: Charge limits for Tandem models in section Charge
limits, in relation with the system charge and the application to quickly define necessary safeties to implement.

Table 28: System evaluation

Application BELOW charge limit ABOVE charge limit
Ensure tightness between condenser & evaporator when system is OFF
All • Thermostatic expansion Valve (TXV), Liquid Line Solenoid Valve LLSV strongly recommended
• Electronic expansion valve (EXV) must close when system stop including in power shut down situation
Non split No test or additional safeties required • Crankcase heater
Since each installation is unique, refrigerant charge may vary
Split • Crankcase heater
• Liquid Line Solenoid Valve + pump-down cycle

Crankcase heater

The surface sump heater are designed to protect the compressor against off-cycle migration of refrigerant.

For DSF090-200, the surface sump heater is located on the compressor shell. For better standby energy
consumption, Danfoss provides 48W and 80W two optional surface sump heater. The selection of surface sump
heater could be refered to below principle:

Figure 54: DSF090 to 200

Table 29: surface sump selection principle

Compressor Surrounding Ambient Surface Sump Heater
Unit has enclosure, no wind 48W SSH
Unit has no enclosure, with wind 80W SSH
Unit has no enclosure, wind >5m/s (ft/s)& ambient temperature <-5°C 80W SSH + additional SSH/thermal insulation

For DSF270-530, the use of a 75W belt heater is recommended.

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Scroll compressors, DSF090 to DSF530 | Application

Figure 55: DSF 270 to 530

9850380
Danfoss

The heater must be turned on whenever all the compressors are off. Crankcase heater accessories are available from
Danfoss (see section Accessories and spare parts).

Liquid line solenoid valve (LLSV)

A LLSV is used to isolate the liquid charge on the condenser side, thereby preventing against charge transfer to the
compressor during off -cycles. The quantity of refrigerant on the low-pressure side of the system can be further
reduced by using a pump-down cycle in association with the LLSV.

Pump-down cycle

By decreasing pressure in the sump, pump down system:

• evacuates refrigerant from oil
• set the sump saturating pressure much lower than ambiance temperature and due to that, avoid refrigerant
condensation in the compressor.

Pump-down must be set higher than 1.7 bar(g) (25 psig). For more details on pump-down cycle see Pump-down
logic recommendations in section Control logic.

Charge limits

Table 30: Charge limits for Single models

Refrigerant charge limit
Models Composition
kg lbs
DSF090 - 8 18
DSF100 - 8 18
DSF115 - 10 22
DSF130 - 10 22
DSF155 - 10 22
DSF175 - 10 22
DSF200 - 10 22
DSF270 - 15 33
DSF325 - 15 33
DSF485 - 17 37
DSF530 - 17 37

Table 31: Charge limits for Tandem models

Refrigerant charge limit
Models Composition
kg lbs
DSF180E DSF090+DSF090 12 26
DSF200E DSF100+DSF100 12 26
DSF230E DSF115+DSF115 12 26
DSF260E DSF130+DSF130 12 26
DSF215U DSF100+DSF115 12 26
DSF230U DSF100+DSF130 12 26
DSF255U DSF100+DSF155 12 26
DSF275U DSF100+DSF175 12 26
DSF285U DSF130+DSF155 12 26
DSF300U DSF100+DSF200 12 26
DSF305U DSF130+DSF175 12 26
DSF310E DSF155+DSF155 14 31

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Scroll compressors, DSF090 to DSF530 | Application

Refrigerant charge limit

Models Composition
kg lbs
DSF315U DSF115+DSF200 12 26
DSF350E DSF175+DSF175 14 31
DSF400E DSF200+DSF200 14 31
DSF330U DSF155+DSF175 14 31
DSF331U DSF130+DSF200 12 26
DSF355U DSF155+DSF200 14 31
DSF375U DSF175+DSF200 14 31
DSF400X DSF130+DSF270 14 31
DSF500X DSF175+DSF325 14 31
DSF470X DSF200+DSF270 14 31
DSF525X DSF200+DSF325 14 31
DSF540E 2xDSF270 21 46
DSF595U DSF270 + DSF325 21 46
DSF650E 2xDSF325 25 55
DSF800U DSF270 + DSF530 21 46
DSF855U DSF325 + DSF530 25 55
DSF970E DSF485 + DSF485 34 75
DSF1060E DSF530 + DSF530 34 75

Table 32: Charge limits for Trio models

Refrigerant charge limit
Models Composition
kg lbs
DSF465T 3 × DSF155 14 31
DSF525T 3 × DSF175 14 31
DSF600T 3 × DSF200 14 31
DSF810T 3 × DSF270 21 46
DSF975T 3 × DSF325 25 55
DSF1180T DSF325+DSF325+DSF530 25 55
DSF1385T DSF530+DSF530+DSF325 34 75
DSF1590T 3 × DSF530 34 75

Power supply and electrical protection

Wiring information
Requirements

• Protect the compressor from short circuit and overcurrent by a thermal magnetic motor circuit breaker set to Max.
operating current or lower (see table in section Three phase electrical characteristics). For DSF090-200, phase
sequence protection is strongly recommended.
• DSF 270-530 compressors are delivered with a pre-installed motor protection module inside the terminal box that
must be powered on.
• HP safety switch and electronic module relay output (M1-M2) must be wired in the safety chain. Other safety
devices such as LP can be either hardware or software managed.
• Provide separate electrical supply for the heaters so that they remain energized even when the machine is out of
service (e.g. seasonal shutdown).

The wiring diagrams below are examples for a safe and reliable compressor wiring:

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Scroll compressors, DSF090 to DSF530 | Application

Figure 56: Compressor model DSF090 - 200

CC-000215
SS CC L1 L3 L2

F1 F1 CB
L2
L3 Ph
L1
LPS
KM

UC
T1 T2

HP T3

DGT
M

Ph
KM

SSH

Figure 57: Compressor model DSF270 - 325

CC-0041
SS CC L1 L3 L2

F1 F1 CB

LPS KM

UC
T1 T2
MPM
T3
HP

S M

KM
DGT

CCH

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Scroll compressors, DSF090 to DSF530 | Application

Figure 58: Compressor model DSF485 - 530

CC-000020
SS CC L1 L3 L2

F1 F1
CB

LPS
KM

UC

T1 T2
MPM
T3
HP

S
KM
DGT

CCH

CB Thermal magnetic motor circuit breaker LPS Safety pressure switch

CC Control circuit M Compressor motor
CCH Crankcase heater MPM Motor Protection Module
DGT Discharge gas thermistor (embedded in com- S Thermistor chain (motor and discharge tem-
pressor) perature)
F1 Fuses SS Seprate supply
HP High pressure safety switch SSH Surface sump heater
KM Compressor contactor

Soft starts
Soft starters are designed to reduce the starting current of 3-phase AC motors. Soft starter must be set so
compressor start-up time is always less than 0.5 seconds to ensure proper lubrication of compressor parts.

Ramp-down must be set to minimum to ensure proper discharge valve closing.

Make sure that the soft starter selected is compatible with R32 refrigerant.

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Scroll compressors, DSF090 to DSF530 | Application

Control logic
Safety control logic requirements
Table 33: Safety control logic requirements
Tripping conditions Re-start conditions
Safeties Value Time Value Time
HP safety switch See Pressure settings table Manual reset
from section Operating enve-
LP safety switch lope data Immediate, no delay. No by- Conditions back to normal. Maximum 5 auto reset during a
pass Switch closed again. period of 12 hours, then man-
Electronic module (Motor pro-
Contact M1-M2 opened ual reset.
tection, DGT)

Cycle rate limit requirements

Danfoss requires a minimum compressor running time of 2 minutes to ensure proper oil return and sufficient motor
cooling.

Additionally, compressor must not exceed 12 starts per hour. 12 starts per hour must not be considered as an
average, this is the maximum number of starts acceptable to keep a good regulation accuracy during low load.

Oil management logic recommendations

In some cases, oil management can be enhanced by control logic:
• If oil return test failed, a function can be integrated in control logic to run all compressors simultaneously during 2
minutes every hour in order to boost oil return. Time and delay can be fine-tuned by oil return test No.1 in section
Manage oil in the circuit. During oil boost, pay special attention to superheat management to avoid liquid flood
back.
• In trio system, after running long time in same state with 2 or 3 compressors, (1+2+3) or (1+2), (2+3) or (3+1), oil
unbalance may appears. A function can be implemented in control logic to stop all compressors during one
minute every two hours in order to balance oil. Time and sequence can be fine-tuned during Oil balancing test in
section Manage oil in the circuit.

Defrost logic recommendations / Reversible systems

In reversible systems, the defrost logic can be worked out to limit liquid flood back effect by:
1. Running full load during defrost to share liquid refrigerant between all compressors.
2. Reducing refrigerant flooding to compressor by transferring liquid refrigerant from one exchanger to the other
before reversing valve thanks pressures.

The following defrost logic combines both advantages:

Figure 59: Defrost logic advantages

Cp 1 ON

Cp 2 ON

4WV H

EXV 100%

CC-000019 1 2 3 4 5 6 7 8 9

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Scroll compressors, DSF090 to DSF530 | Application

Cp 1 Compressor 1
Cp 2 Compressor 2
ON On
H Heating
1 Defrost start. Stop all compressors
2 4 Way Valve (4WV) stays in heating mode. EXV opened to transfer liquid from outdoor to indoor
exchanger thanks to pressure difference.
3 When pressures are almost balanced(1), change 4WV to cooling mode.
4 Start Cp1 and Cp 2 with 0.5 seconds delay between 2 successive starts
5 Defrost
6 Defrost end. Stop all compressors
7 4 WV stays in cooling mode. EXV opened to transfer liquid from indoor to outdoor exchanger thanks to
pressure difference
8 When pressures are almost balanced(1), change 4WV to heating mode.
9 Start Cp1 and Cp 2 with 0.5 seconds delay between 2 successive starts

In reversible systems, to ensure compressor reliability, the 4-way valve must not reverse when the compressor is
stopped due to heating or cooling demand (stop on thermostat).
(1)
EXV Opening degree and time have to be set to keep a minimum pressure for 4 way valve moving. In any case, defrost logics must respect
requirements and tests described in sections Manage superheat and Operating envelope data.

Pump-down logic recommendations

Pump down is initiated prior to shutting down the last compressor on the circuit by de-energizing a liquid line
solenoid valve or closing electronic expansion valve. When suction pressure reached the cut-out pressure,
compressor is stopped, and liquid solenoid valve or electronic expansion valve remains closed.

Two types of pump-down exist:

• One shot pump down (preferred): when last compressor of the circuit stops, suction presssure is decreased 1.5 bar
(22 psi) below nominal evaporating pressure with minimum of 1.7 bar(g) (25 psig). Even if suction pressure
increases again, the compressor will not restart.
• Continuous pump-down: traditional pump-down, Compressor restarts automatically when suction pressure
increases up to 4 cycles maximum.

Non Return Valve (NRV)

DSF compressors integrate tight internal non return valve (INRV), therefore no external Non Return Valve (NRV) is
needed.

Reduce moisture in the system

Excessive air and moisture

• can increase condensing pressure and cause high discharge temperatures.

• can create acid giving rise to copper platting.
• can destroy the lubricating properties of the oil.

All these phenomena can reduce service life and cause mechanical and electrical compressor failure.

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Scroll compressors, DSF090 to DSF530 | Application

Requirements
DSF compressors are delivered with < 100 ppm moisture level.
At the time of commissioning, system moisture content may be up to 100 ppm.
During operation, the filter drier must reduce this to a level between 20 and 50 ppm.

Solutions
To achieve this requirement, a properly sized and type of drier is required.
Important selection criteria’s include:
• driers water content capacity
• system refrigeration capacity
• system refrigerant charge

For new installations with DSF compressors with polyolester oil, Danfoss recommends using the Danfoss DML
(100% molecular sieve) solid core filter drier.

Assembly line procedure

Compressor storage
Store the compressor not exposed to rain, corrosive or flammable atmosphere between -35 °C (-31 °F) and 70 °C
(158 °F) when charged with nitrogen and between -35 °C (-31 °F) and Ts max value (see section Pressure equipment
directive 2014/68/EU) when charged with refrigerant.

Compressor holding charge

Each compressor is shipped with a nominal dry nitrogen holding charge between 0.3 bar (4 psi) and 0.7 bar (10 psi)
and is sealed with elastomer plugs.

Respect the following sequence to avoid discharge check valve gets stuck in open position:
• Remove the suction plug first
• Remove the discharge plug afterwards

An opened compressor must not be exposed to air for more than 20 minutes to avoid moisture is captured by
the POE oil.

Compressor handling and storage

Each Danfoss scroll compressor is equipped with two lift rings on the top shell.

Always use both these rings when lifting the compressor. Use lifting equipment rated and certified for the weight of
the compressor. The use of a spreader bar rated for the lifting lugs spacing and the weight of the compressor is
necessary to ensure better load distribution. The use of lifting hooks closed with a clasp and certified to lift the
weight of the compressor is also highly recommended. Always respect the appropriate rules concerning lifting
objects of the type and weight of these compressors. Maintain the compressor in an upright position during all
handling manoeuvres (maximum of 15° from vertical).

Never use only one lifting lug to lift the compressor. The compressor is too heavy for the single lug to handle, and
the risk is run that the lug could separate from the compressor with extensive damage and possible personal injury
as a result.

Store the compressor not exposed to rain, corrosive or flammable atmosphere between -35°C and Ts value when
charged with refrigerant and between -35°C and 70°C when charged with nitrogen.

When the compressor is mounted as part of an installation, never use the lift rings on the compressor to lift the
installation. The risk is run that the lugs could separate from the compressor or that the compressor could separate
from the base frame with extensive damage and possible personal injury as a result.

Never apply force to the terminal box with the intention of moving the compressor, as the force placed upon the
terminal box can cause extensive damage to both the box and the components contained inside.

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Scroll compressors, DSF090 to DSF530 | Application

Figure 60: Heavy Figure 61: Correct Figure 62: Incorrect

HEAVY

do not lift
manually

Piping assembly
Good practices for piping assembly is a pre-requisite to ensure compressor life time (system cleanliness, brazing
procedure etc.)

Table 34: System cleanliness

Circuit contamination possible cause Requirement
Brazing and welding oxides During brazing, flow nitrogen through the system.
Particles and burrs Remove any particles and burrs generated by tube cutting and hole drilling.
Moisture and air Use only clean and dehydrated refrigeration grade copper tubing.
Opened compressor must not be exposed to air more than 20 minutes to avoid moisture captured by oil.

Brazing procedure:
• Brazing operations must be performed by qualified personnel.
• Make sure that no electrical wiring is connected to the compressor.
• To prevent compressor shell and electrical box overheating, use a heat shield and/or a heat-absorbent compound.
• Clean up connections with degreasing agent.
• Flow nitrogen through the compressor.
• Use flux in paste or flux coated brazing rod.
• Use brazing rod with a minimum of 5% silver content.
• It is recommended to use double-tipped torch using acetylene to ensure a uniform heating of connection.
• For discharge connections brazing time should be less than 2 minutes to avoid NRVI damages if any.
• To enhance the resistance to rust, a varnish on the connection is recommended.

DSF compressors connectors are made of steel copper coated, which benefit to protect against corrosion and
facilitate adhesion during brazing operation.

As per standards practice in the refrigeration industry, Danfoss Commercial Compressor recommend to use of silver
cadmium free solder alloy and flux (added or flux coated rods). The significant silver content in these brazing alloy
will help the brazing operation, providing an excellent fluidity and a limited heating temperature. It will bring also a
good resistance to corrosion, a proper elongation compatible with system vibration, and good behavior under
thermal variation improving the strength of connection and limiting fractures and refrigerant leaks. (Crucial with
A2L refrigerants).

A typical content of 30 – 40% Ag (Silver) is recommended by Danfoss.

The use of self-flux alloys (as phosphorous alloys) is not recommended by Danfoss. This type of brazing require a
higher working temperature, that may overheat the connectors, damaging the thin layer of copper, resulting in
phosphides creation and joint zone embrittlement.

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Scroll compressors, DSF090 to DSF530 | Application

1 Heat shield

CC-0052

For more detailed information see "Brazing technique for compressors connectors" AP192186420580.

Before eventual un-brazing of the compressor or any system component, the refrigerant charge must be
removed and the installation vacuumed.

System pressure test and leak detection

The compressor has been strength tested and leak proof tested (<3g/year) at the factory. For system tests:

• Always use an inert gas such as Nitrogen or Helium.

• Pressurize the system on HP side first then LP side.
• Do not exceed the following pressures indicated in table below.

Table 35: System pressure test and leak detection

Maximum compressor test pressures DSF090-200 DSF270-325-485-530
Maximum compressor test pressure high side (HP) 53.6 bar (g) (777 psig) 53.6 bar (g) (777 psig)
HP-LP<37 bar (537 psi) HP-LP<37 bar (537 psi)
Maximum compressor test pressure low side (LP) 36.7 bar (g) (533 psig) 34.3 bar (g) (497 psig)
LP – HP <5 bar (73 psi) LP – HP <5 bar (73 psi)
Maximum speed 4.8 bar/s (70 psi/s) Maximum speed 4.8 bar/s (70 psi/s) (1)

(1)
DSF compressors have an internal non return valve fitting: the maximum pressurizing speed must be respected to ensure pressure
equalization between LP and HP side over scroll elements.

Vacuum evacuation and moisture removal

Requirements:

• Never use the compressor to evacuate the system.

• Connect a vacuum pump to both the LP and HP sides.
• Evacuate the system to a pressure of 500 μm Hg (0.67 mbar/0.02 in.Hg) absolute.

Recommendations:
• Energized heaters improve moisture removal.
• Alternate vacuum phases and break vacuum with Nitrogen to improve moisture removal.

For more detailed information see “Vacuum pump-down and dehydration procedure” AP000086424630en.

Refrigerant charging
Initial charge:

• For the initial charge, the compressor must not run.

• Charge refrigerant as close as possible to the nominal system charge.
• This initial charging operation must be done in liquid phase between the condenser outlet and the filter drier.

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Scroll compressors, DSF090 to DSF530 | Application

If needed, a complement of charge can be done before evaporator, in liquid phase while compressor is running by
slowly throttling liquid in.

Never bypass safety low pressure switch.

For more detailed information see “Recommended refrigerant system charging practice“ AP000086421422.

Dielectric strength and insulation resistance tests

Several tests have been performed on each compressor at the factory between each phase and ground.
• Dielectric strength test is done with a high potential voltage (hi-pot) of 2Un +1000 V AC at least, and leakage
current must be less than 5 mA.
• Insulation resistance is measured with a 500 V DC megohm tester and must be higher than 1 megohm.

Recommendations:
• Additional dielectric test is not recommended as it may reduce motor lifetime. Nevertheless, if such as test is
necessary, it must be performed at a lower voltage.
• Insulation resistance test can be done.
• The presence of refrigerant around the motor windings will result in lower resistance values to ground and higher
leakage current readings. Such readings do not indicate a faulty compressor. To prevent this, the system can be
first operated briefly to distribute refrigerant.

Do not use a megohm meter nor apply power to the compressor while it is under vacuum as this may cause
internal damage.

Commissioning
Preliminary check
Check electrical power supply:

• Phase order: Reverse rotation is obvious if the compressor do not build up pressure and sound level is abnormal
high

DSF compressors are equipped with an electronic module: reverse rotation will be automatically detected. For more
details refer to section Motor protection.

• Voltage and voltage unbalance within tolerance: For more details refer to section Motor voltage.

Initial start-up
• Crankcase heaters must be energized at least 6 hours in advance to remove refrigerant.
• A quicker start-up is possible by “jogging” the compressor to evacuate refrigerant. Start the compressor for 1
second, then wait for 1 to 2 minutes. After 3 or 4 jogs the compressor can be started. This operation must be
repeated for each compressor individually.

System monitoring
The system must be monitored after initial startup for a minimum of 60 minutes to ensure proper operating
characteristics such as:

• Correct superheat and subcooling.

• Current draw of individual compressors within acceptable values (max operating current).
• No abnormal vibrations and noise.
• Correct oil level.

If Oil Top-up is needed, it must be done while the compressor is idle. Use the schrader connector or any other
accessible connector on the compressor suction line. Always use original Danfoss POE oil 185SL from new cans. For
more detailed information see “Lubricants filling in instructions for Danfoss Commercial Compressors”
AP000086435866.

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Scroll compressors, DSF090 to DSF530 | Application

Dismantle and disposal

Danfoss recommends that compressors and compressor oil should be recycled by a suitable company at its

site.

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Scroll compressors, DSF090 to DSF530 | Packaging

Packaging

Single pack

Table 36: Single pack

Compressor Length Width Height Gross weight
model mm inch mm inch mm inch kg lbs
DSF090 565 22.2 470 18.5 718 28.3 69 152
DSF100 565 22.2 470 18.5 718 28.3 69 152
DSF115 565 22.2 470 18.5 718 28.3 76 168
DSF130 565 22.2 470 18.5 718 28.3 76 168
DSF155 565 22.2 470 18.5 718 28.3 79 174
DSF175 565 22.2 470 18.5 718 28.3 81 179
DSF200 565 22.2 470 18.5 718 28.3 84 185
DSF270 750 29.5 750 29.5 1050 41.3 128 282
DSF325 750 29.5 750 29.5 1050 41.3 131 289
DSF485 750 29.5 750 29.5 1050 41.3 195 430
DSF530 750 29.5 750 29.5 1050 41.3 195 430

Industrial pack

Table 37: Industrial pack

Compressor Length Width Height Gross weight Static stack‐
Nbr(1)
model mm inch mm inch mm inch kg lbs ing pallets
DSF090 8 1150 45.3 950 37.4 680 26.8 494 1089 2
DSF100 8 1150 45.3 950 37.4 680 26.8 494 1089 2
DSF115 8 1150 45.3 950 37.4 750 29.5 544 1199 2
DSF130 8 1150 45.3 950 37.4 750 29.5 544 1199 2
DSF155 8 1150 45.3 950 37.4 750 29.5 566 1248 2
DSF175 8 1150 45.3 950 37.4 750 29.5 582 1283 2
DSF200 8 1150 45.3 950 37.4 750 29.5 606 1336 2
DSF270 6 1150 45.3 965 38 768 30.2 693 1528 2
DSF325 6 1150 45.3 965 38 768 30.2 712 1570 2
DSF485 4 1150 45.3 965 38 800 31.5 744 1640 2
DSF530 4 1150 45.3 965 38 800 31.5 744 1640 2

(1)
Number of compressors per pack.

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Scroll compressors, DSF090 to DSF530 | Ordering

Ordering

Compressor code numbers

Danfoss scroll compressors DSF can be ordered in either industrial packs or in single packs. Please use the code
numbers from below tables for ordering.

For compressors DSF270 to DSF530 use in single applications, flexible grommets are available as accessory kit
8156138.

Single pack

Table 38: Single pack

Code no.
3 4 7 9
Compressor model Connections Motor protection
380-415/3/50
208-230/3/60 575/3/60 380-400/3/60
460/3/60
DSF090 Brazed Internal 120H1908 120H1635 120H1906 120H1904
DSF100 Brazed Internal 120H1902 120H1637 120H1900 120H1898
DSF115 Brazed Internal 120H1896 120H1639 120H1894 120H1892
DSF130 Brazed Internal 120H1890 120H1503 120H1888 120H1886
DSF155 Brazed Internal 120H1884 120H1475 120H1882 120H1880
DSF175 Brazed Internal 120H1878 120H1477 120H1876 120H1874
DSF200 Brazed Internal 120H1872 120H1479 120H1870 120H1868
Brazed Module 24 V AC(1) 120H1611 120H1422 120H1630 -
DSF270
Brazed Module 110 – 240 V(1) 120H1609 120H1424 - 120H1621
Brazed Module 24 V AC(1) 120H1605 120H1426 120H1643 -
DSF325
Brazed Module 110 – 240 V(1) 120H1603 120H1428 - 120H1619
Brazed Module 24 V AC(1) 120H1601 120H1446 120H1642 -
DSF485
Brazed Module 110 – 240 V(1) 120H1599 120H1448 - 120H1617
Brazed Module 24 V AC(1) 120H1595 120H1430 120H1641 -
DSF530
Brazed Module 110 – 240 V(1) 120H1593 120H1432 - 120H1615

(1)
Electronic motor protection, module located in terminal box.

 NOTE:
Mounting kit for DSF270 to DSF530 single compressor applications: Ref 8156138.

Industrial pack

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Scroll compressors, DSF090 to DSF530 | Ordering

Table 39: Industrial pack

Code no.
3 4 7 9
Compressor model Connections Motor protection
380-415/3/50
208-230/3/60 575/3/60 380-400/3/60
460/3/60
DSF090 Brazed Internal 120H1907 120H1636 120H1905 120H1903
DSF100 Brazed Internal 120H1901 120H1638 120H1899 120H1897
DSF115 Brazed Internal 120H1895 120H1640 120H1893 120H1891
DSF130 Brazed Internal 120H1889 120H1502 120H1887 120H1885
DSF155 Brazed Internal 120H1883 120H1474 120H1881 120H1879
DSF175 Brazed Internal 120H1877 120H1476 120H1875 120H1873
DSF200 Brazed Internal 120H1871 120H1478 120H1869 120H1867
Brazed Module 24 V AC(1) 120H1610 120H1423 - -
DSF270
Brazed Module 110 – 240 V(1) 120H1608 120H1425 - 120H1620
Brazed Module 24 V AC(1) 120H1604 120H1427 - -
DSF325
Brazed Module 110 – 240 V(1) 120H1602 120H1429 - 120H1618
Brazed Module 24 V AC(1) 120H1600 120H1447 - -
DSF485
Brazed Module 110 – 240 V(1) 120H1598 120H1449 - 120H1616
Brazed Module 24 V AC(1) 120H1594 120H1431 - -
DSF530
Brazed Module 110 – 240 V(1) 120H1592 120H1433 - 120H1614

(1)
Electronic motor protection, module located in terminal box.

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Scroll compressors, DSF090 to DSF530 | Accessories and spare parts

Accessories and spare parts

Gaskets

Table 40: Gaskets

Code no. Description Application Packaging Pack size
8156132 Gasket, 1"3/4 Models with 1"3/4 rotolock connection Multipack 10
8156133 Gasket, 2"1/4 Models with 2"1/4 rotolock connection Multipack 10
7956003 Gasket, 1"3/4 Models with 1"3/4 rotolock connection Industry pack 50
7956004 Gasket, 2"1/4 Models with 2"1/4 rotolock connection Industry pack 50

Solder sleeve

Table 41: Solder sleeve

Code no. Description Application Packaging Pack size
8153004 Solder sleeve P02 (1"3/4 Rotolock - 1"1/8 ODF) Models with 1"3/4 rotolock connection Multipack 10
8153006 Solder sleeve P03 (2"1/4 Rotolock - 1"5/8 ODF) Models with 2"1/4 rotolock connection Multipack 10

Rotolock nut

Table 42: Rotolock nut

Code no. Description Application Packaging Pack size
8153124 Rotolock nut,1"3/4 Models with 1-3/4" rotolock connection Multipack 10
8153126 Rotolock nut, 2"1/4 Models with 2-1/4" rotolock connection Multipack 10

Motor protection modules

Table 43: Motor protection modules

Code no. Description Application Packaging Pack size
120Z0584 Electronic motor protection module, 24 V AC DSF270-530 Single pack 1
120Z0585 Electronic motor protection module, 110/240 V DSF270-530 Single pack 1
120Z0624 Electronic motor protection module, 24 V AC DSF485-530 code3 Single pack 1
120Z0802 Electronic motor protection module, 110/240 V DSF485-530 code3 Single pack 1

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Scroll compressors, DSF090 to DSF530 | Accessories and spare parts

Crankcase heaters

Table 44: Crankcase heaters

Code no. Description Application Packaging Pack size
120Z0388 80W 24V surface sump heater CE and UL DSF090 to 200 Multipack 8
120Z0389 80W 230V surface sump heater CE and UL DSF090 to 200 Multipack 8
120Z0390 80W 400V surface sump heater CE and UL DSF090 to 200 Multipack 8
120Z0391 80W 460V surface sump heater CE and UL DSF090 to 200 Multipack 8
120Z0402 80W 575V surface sump heater CE and UL DSF090 to 200 Multipack 8
120Z0667 48W 24V surface sump heater CE and UL DSF090 to 200 Single pack 1
120Z0668 48W 230V surface sump heater CE and UL DSF090 to 200 Single pack 1
120Z0669 48W 400V surface sump heater CE and UL DSF090 to 200 Single pack 1
120Z0670 48W 460V surface sump heater CE and UL DSF090 to 200 Single pack 1
120Z0671 48W 575V surface sump heater CE and UL DSF090 to 200 Single pack 1
7773108 Belt type crankcase heater,75W,230V,CE & UL DSF270-530 Multipack 6
7973005 Belt type crankcase heater,75W,230V,CE & UL DSF270-530 Industry pack 50
7773118 Belt type crankcase heater,75W,400V,CE & UL DSF270-530 Multipack 6
120Z0464 Belt type crankcase heater,75W,460 V,CE & UL DSF270-530 Multipack 6
120Z0465 Belt type crankcase heater,75W,575 V,CE & UL DSF270-530 Multipack 6
120Z0870 Belt type crankcase heater,75W, 24 V,CE & UL DSF270-530 Multipack 6

Mounting hardware

Table 45: Mounting hardware

Code no. Description Application Packaging Pack size
120Z0066 Mounting kit for scroll compressors. Grommets, sleeves, bolts, wash- DSF090 to 200 Single pack 1
ers
8156138 Mounting kit for scroll compressors. Grommets, sleeves, bolts, wash- DSF270-530 in single installation Single pack 1
ers
120Z0495 Mounting kit for scroll compressors. including triangle rigid spacers, DSF270 to 530 Manifold installa- Single pack 1
Grommets, Sleeves, Bolts, Washers tions when mounting directly on
rail is not wished

Lubricant

Table 46: Lubricant

Code no. Description Packaging Pack size
120Z0750 POE lubricant 185SL, 1 litre can Multipack 12

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Scroll compressors, DSF090 to DSF530 | Accessories and spare parts

Terminal boxes, covers and T-block connectors

Table 47: Terminal boxes, covers and T-block connectors

Code no. Description Application Packaging Pack Size
Service kit for terminal box 96 x 115 mm, includ- DSF090 to 200(except DSF155/175 code 3 and
8156135 Multipack 10
ing 1 cover, 1 clamp DSF200 code 3/7/9)
DSF090 to 200(except DSF155/175 code 3 and
8173230 T block connector 52 x 57 mm Multipack 10
DSF200 code 3/7/9)
8173021 T block connector 60 x 75 mm DSF155/175 code 3, DSF200 code 3/7/9 Multipack 10
120Z0413 Terminal box cover DSF155/175 code 3, DSF200 code 3/7/9 Single pack 1
120Z0458 Terminal box 210 x 190 mm, incl. cover DSF270-325-485*-530* (*except code3) Single pack 1
120Z0604 Terminal box 210x340 mm, incl. cover DSF485-530 code3 Single pack 1
120Z0774 T block connector 80x80 mm DSF270-530 Multipack 10

Acoustic hoods

Table 48: Acoustic hoods

Code no. Description Application Packaging Pack Size
120Z0768 Acoustic hood DSF large scroll DSF270-530 Single pack 1
120Z0490 Acoustic hood body for scroll compressor DSF090-100 Single pack 1
120Z0491 Acoustic hood body for scroll compressor DSF115-175 Single pack 1
120Z0492 Acoustic hood body for scroll compressor DSF200 Single pack 1
120Z0493 Acoustic hood top for scroll compressor DSF090-200 Single pack 1

Miscellaneous

Table 49: Miscellaneous

Code no. Description Packaging Pack Size
8156019 Sight glass with gaskets (black & white) Multipack 4
8156129 Gasket for oil sight glass, 1"1/8 (white teflon) Multipack 10
7956005 Gasket for oil sight glass, 1"1/8 (white teflon) Multipack 50
8154001 Danfoss Commercial Compressors blue spray paint Single pack 1

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Scroll compressors, DSF090 to DSF530 | Accessories and spare parts

Tandem kits

Table 50: Tandem kits

Code no. Description Application Packaging Pack Size
120Z0634 Suction washer, rigid spacer, organ pipe, gasket DSF260E-310E-DSF350E-DSF400E Single pack 1
120Z0692 Suction washer, rigid spacer, organ pipe, gasket DSF285U-305U-330U Single pack 1
120Z0693 Suction washer, rigid spacer, organ pipe, gasket DSF300U-315U Single pack 1
120Z0694 Suction washer, rigid spacer, organ pipe, gasket DSF331U-355U-DSF375U Single pack 1
120Z0781 Kit tandem crossplatform DSF400X-470X-DSF500X-DSF525X Single pack 1
120Z0786 Kit tandem, solid,washer 24mm,OEL 1" 5/8 DSF800U Single pack 1
120Z0787 Kit tandem, solid,washer 27mm,OEL 1" 5/8 DSF855U Single pack 1
120Z0785 Kit tandem, solid, OEL 1"5/8 DSF970E-1060E Single pack 1
120Z0792 Kit tandem, solid,OEL 1" 3/8 DSF540E-650E Single pack 1
120Z0796 Kit tandem, solid,washer 31mm,OEL 1" 3/8 DSF595U Single pack 1

Trio kits

Table 51: Trio kits

Code no. Description Application Packaging Pack Size
120Z0714 Organ pipe, sleeves, rigid spacer, gasket, rubber DSF465T-DSF525T-DSF600T Single pack 1
grommet
120Z0784 Kit trio, solid,washer 30 mm, OEL 1" 5/8 DSF810T-975T (left suction) Single pack 1
120Z0790 Kit Trio,solid, OEL 1”5/8 DSF1180T (left suction) Single pack 1
120Z0793 Kit trio, solid,washer 33 mm, OEL 1" 5/8 DSF1590T (left and right suction) Single pack 1
120Z0794 Kit trio, solid,washer 34.5 mm, OEL 1" 5/8 DSF810T-975T (right suction) Single pack 1
120Z0814 Kit Trio,solid,washer 26mm, OEL 1”5/8 DSF1385T ( left and right suction) Single pack 1
120Z0815 Kit Trio,solid,washer 29mm (x2), OEL 1”5/8 DSF1180T (right suction) Single pack 1

© Danfoss | Climate Solutions | 2024.04 AB309735209512en-000604 | 65

 Online support

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© Danfoss | Climate Solutions | 2024.04 AB309735209512en-000604 | 66